116,888 Words Containing "O"
116,888 words containing "O" in our 199K-word dictionary.
Browse the complete list of 116,888 English words containing "O". Each word in the grid below shows its IPA pronunciation, CEFR difficulty level (A1 beginner up to C2 mastery), and a one-line plain-English definition. Click any word to open its full dictionary entry. Use the filters to narrow by length, part of speech, or learner level.
Most Common Words Containing "O" (Top 1k)
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Book /bʊk/noun A1
A written work with pages bound together that you can read.
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Both /bəʊθ/noun A1
Referring to two things at the same time, not just one or the other.
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Box /bɑːks/noun A1
A rectangular container, typically made of cardboard, wood, or plastic, used for storing or carrying items.
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Boy /bɔɪ/noun A1
A male child or young man, typically from birth until teenage years or early adulthood.
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Cold /koʊld/adj A1
When something has a low temperature and you feel chilly or uncomfortable.
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Come /kʌm/verb A1
To move from where you are to where someone else is.
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Cow /kaʊ/noun A1
A big farm animal that gives milk and lives in fields or barns.
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Do /duː/verb A1
To perform or complete an action, task, or activity.
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Dog /dɔɡ/noun A1
A pet animal with four legs that barks and plays.
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Done /dʌn/adj B1
finished with something, or cooked enough to eat; not needing more time or effort
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Down /daʊn/adv A1
Moving or being at a lower position or level.
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For /fɔːr/prep A1
Shows who something is for or what something is used for.
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Fork /fɔːrk/noun A1
A tool with pointed branches at the end, used for eating or digging.
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Form /fɔːrm/noun A1
The way something looks or is shaped, or a paper with questions to answer.
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Four /fɔːr/noun A1
The number that comes after three and before five.
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From /frɑːm/prep A1
showing where something comes from or when it starts
Less Common Words Containing "O" (Top 5k+)
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Also /ˈɔːlsoʊ/adv A1
Plus another thing; in addition to something already mentioned.
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Boat /boʊt/noun A1
a small ship or vessel for traveling on water, usually carrying people or goods
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Body /ˈbɑːdi/noun A1
the whole physical form of a person or animal, including head, arms, legs, and torso
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Boil /bɔɪl/verb A1
To heat water or liquid until it reaches its boiling point and starts to bubble.
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Bomb /bɑːm/noun A2
An explosive device that is set off to destroy things or cause harm.
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Bond /bɑːnd/noun B2
A close connection or link between people. Also, a type of investment where you lend money to a company or government and they promise to pay you back with interest.
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Bone /boʊn/noun A1
A hard white part inside the body that supports and protects organs.
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Boom /buːm/noun B2
A time when the economy is growing fast, businesses are doing well, and people have jobs and money to spend.
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Boot /buːt/noun A2
A sturdy shoe that reaches above the ankle, often worn in cold weather or for work.
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Born /bɔːrn/adj A1
When you are born, you come into the world; it describes your beginning of life or origin.
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Boss /bɒs/noun A2
Someone who is in charge of a workplace or organization and gives orders to workers.
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Bowl /boʊl/noun A1
A round, deep container used for eating soup, cereal, or other food.
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Coal /koʊl/noun A2
A dark solid fuel that comes from under the ground and is used for heating and power.
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Coat /koʊt/noun A1
A piece of clothing you wear on top to keep warm or dry outside.
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Code /koʊd/noun B1
A set of instructions or symbols that give information or control how something works.
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Coin /kɔɪn/noun A1
A piece of metal money, typically round, used to buy things or given in change.
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Cool /kuːl/adj A1
When something is slightly cold or feels fresh, not hot.
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Copy /ˈkɒpi/noun A1
One version of something that is made to look the same as another version.
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Cost /kɔːst/noun A1
How much money you need to pay for something.
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Crow /kroʊ/noun A2
A big black bird that is common in many places and often travels in groups.
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Demo /ˈdɛm.oʊ/verb B1
to perform a hands-on showing of something so people understand how it functions
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Door /dɔr/noun A1
A panel that opens and closes to go in or out of a room or building.
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Drop /drɒp/verb A1
To release something so it falls to the ground or a lower place.
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Ergo /ˈɜːrɡoʊ/adv C2
Therefore; used to introduce a conclusion that follows logically from what was stated before.
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Flow /fləʊ/verb B1
When something moves smoothly and continuously from one place to another.
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Food /fuːd/noun A1
Something you eat to stay alive and healthy.
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Foot /fʊt/noun A1
The part of your leg that touches the ground when you walk.
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Fox /fɑːks/noun A2
A clever animal that looks like a dog with a long, fluffy tail. Foxes are known for being smart.
556 More Words Containing "O" (definitions coming soon)
Words Containing "O" by Length
2 Letter Words Containing "O" (39)
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Do /duː/verb A1
To perform or complete an action, task, or activity.
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Go /ɡoʊ/verb A1
To move or travel from one place to a different place; to depart or leave a location.
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No /noʊ/adv A1
The opposite of 'yes'. You say it when you do not want something or do not agree.
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Of /əv/prep A1
A preposition showing what something is made of or who owns it.
See all 39 2-letter words containing "O" →
3 Letter Words Containing "O" (391)
See all 391 3-letter words containing "O" →
4 Letter Words Containing "O" (1,654)
See all 1,654 4-letter words containing "O" →
5 Letter Words Containing "O" (3,875)
See all 3,875 5-letter words containing "O" →
6 Letter Words Containing "O" (7,257)
See all 7,257 6-letter words containing "O" →
7 Letter Words Containing "O" (11,263)
See all 11,263 7-letter words containing "O" →
8 Letter Words Containing "O" (15,241)
See all 15,241 8-letter words containing "O" →
9 Letter Words Containing "O" (17,329)
See all 17,329 9-letter words containing "O" →
10 Letter Words Containing "O" (16,817)
See all 16,817 10-letter words containing "O" →
11 Letter Words Containing "O" (14,203)
See all 14,203 11-letter words containing "O" →
12 Letter Words Containing "O" (11,224)
See all 11,224 12-letter words containing "O" →
13 Letter Words Containing "O" (8,271)
See all 8,271 13-letter words containing "O" →
14 Letter Words Containing "O" (5,593)
See all 5,593 14-letter words containing "O" →
15 Letter Words Containing "O" (3,731)
Words Containing "O" by Part of Speech
Nouns Containing "O" (1,024)
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Another /əˈnʌðər/noun A1
One more of something similar to what you already have or talked about.
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Anyone /ˈɛniˌwʌn/noun A1
Any person at all; used when it doesn't matter who.
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Book /bʊk/noun A1
A written work with pages bound together that you can read.
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Both /bəʊθ/noun A1
Referring to two things at the same time, not just one or the other.
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Box /bɑːks/noun A1
A rectangular container, typically made of cardboard, wood, or plastic, used for storing or carrying items.
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Boy /bɔɪ/noun A1
A male child or young man, typically from birth until teenage years or early adulthood.
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Brother /ˈbrʌðər/noun A1
Your brother is a boy or man who shares the same parents as you.
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Choice /tʃɔɪs/noun A2
A decision you make by picking one option from several possible ones.
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Classroom /ˈklɑːsruːm/noun A1
A room in a school where students learn from a teacher.
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Clock /klɑːk/noun A1
An instrument that tells you what time it is.
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Colour /ˈkʌlər/noun A1
One of the basic colors like red, blue, yellow, or green that you see in things around you.
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Consequence /ˈkɑːnsɪkwɛns/noun B2
What happens as a result of an action or decision; the outcome or effect of something.
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Cow /kaʊ/noun A1
A big farm animal that gives milk and lives in fields or barns.
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Decision /dɪˈsɪʒən/noun A1
A choice you make or have made about something.
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Dictionary /ˈdɪkʃəneri/noun A2
A book that explains what words mean and how to use them.
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Doctor /ˈdɒktər/noun A1
A medical professional trained to diagnose and treat illness and injury.
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Dog /dɔɡ/noun A1
A pet animal with four legs that barks and plays.
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Envelope /ˈɛnvəloʊp/noun A1
A paper cover you use to send a letter in the mail.
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Explanation /ˌɛkspləˈneɪʃən/noun A1
words or information that help someone understand something
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Floor /flɔːr/noun A1
The ground or bottom surface of a room where you stand and walk.
See all 1,024 nouns containing "O" →
Verbs Containing "O" (285)
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Close /kloʊz/verb A1
To shut or move something so it is no longer open.
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Come /kʌm/verb A1
To move from where you are to where someone else is.
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Do /duː/verb A1
To perform or complete an action, task, or activity.
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Explore /ɪkˈsplɔːr/verb A2
to travel around a place or study something carefully to learn more
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Follow /ˈfɑːloʊ/verb A1
To move behind someone because you want to go where they are going.
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Forget /fərˈɡɛt/verb A1
To not remember something you knew before; to lose it from memory.
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Go /ɡoʊ/verb A1
To move or travel from one place to a different place; to depart or leave a location.
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Hold /həʊld/verb A1
To keep something in your hands or arms, like holding a baby or holding a pencil.
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Know /noʊ/verb A1
To understand or have information about something; to be familiar with someone or a place.
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Look /lʊk/verb A1
To turn your eyes to see someone or something; to watch or observe by using your eyes.
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Lose /luːz/verb A1
To not be able to find something anymore, or to stop having something that you once had.
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Love /lʌv/verb A1
Love means to have strong feelings of affection for a person, animal, or thing that you care about deeply.
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Mention /ˈmɛnʃən/verb A1
To talk about or bring up something in conversation, usually briefly and without much detail.
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Organize /ˈɔrɡənaɪz/verb A2
To arrange things neatly, or to create a team or plan.
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Owe /oʊ/verb A1
You owe money or thanks when someone gave you something you must give back.
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Own /oʊn/verb A1
To have something that belongs to you.
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Point /pɔɪnt/verb A1
To show where something is by extending your finger or hand toward it.
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Pop /pɑp/verb A1
To break something by pressing it or to make a sudden, sharp sound, usually by explosion or rupture.
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Produce /prəˈdjuːs/verb A2
To create or make something, especially in factories or farms.
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Protect /prəˈtɛkt/verb A2
Keep someone or something safe.
See all 285 verbs containing "O" →
Adjectives Containing "O" (395)
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Brown /braʊn/adj A1
Brown is a dark colour you see in earth, wood, and chocolate.
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Cold /koʊld/adj A1
When something has a low temperature and you feel chilly or uncomfortable.
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Consistent /kənˈsɪstənt/adj B2
Something that stays the same, happens regularly, or is done in the same way repeatedly.
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Done /dʌn/adj B1
finished with something, or cooked enough to eat; not needing more time or effort
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Famous /ˈfeɪməs/adj A2
Well-known by a large number of people worldwide.
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Favourite /ˈfeɪvərɪt/adj A1
Your top choice; the thing you like better than anything else.
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Foreign /ˈfɒrən/adj A2
From or belonging to a different country; not from your own place.
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Good /ɡʊd/adj A1
Positive, of high quality, or satisfying expectations.
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Hot /hɑːt/adj A1
Having or producing a lot of heat; warm enough to burn or hurt your skin if you touch it.
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Important /ɪmˈpɔːrtənt/adj A1
Mattering a lot or having a strong effect on something.
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Long /lɔŋ/adj A1
Something that measures a lot from the beginning to the end; not short.
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Lost /lɔːst/adj A1
When you don't know where you are or how to get somewhere, you are lost. You cannot find your way.
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Low /loʊ/adj A1
Close to the ground or at a small height; not high or tall.
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More /mɔːr/adj A1
A larger amount of something compared to another; the opposite of less.
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Obvious /ˈɒbviəs/adj A2
Easy to see or understand; not hidden or difficult.
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Ok /ˌoʊˈkeɪ/adj A1
Good enough; not bad, but not great.
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Old /oʊld/adj A1
Having been alive or existing for a long time.
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Open /ˈoʊpən/adj A1
Not covered or closed; you can go in or see inside.
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Original /əˈrɪdʒənəl/adj B1
The first version; something new and different from copies.
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Other /ˈʌðər/adj A1
Something different or extra from what you already have.
See all 395 adjectives containing "O" →
Adverbs Containing "O" (56)
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Down /daʊn/adv A1
Moving or being at a lower position or level.
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How /haʊ/adv A1
A question word. Ask 'How?' to find out the way someone does something.
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No /noʊ/adv A1
The opposite of 'yes'. You say it when you do not want something or do not agree.
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Not /nɑt/adv A1
A word that makes a sentence negative; opposite of yes.
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Now /naʊ/adv A1
At this moment or the present time; not in the past or future.
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Off /ɔːf/adv A1
Not on; separated from something. Go away from.
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Only /ˈoʊnli/adv A1
Just this thing and nothing else; the single one among others.
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Out /aʊt/adv A1
Away from a place, building, or home; not inside.
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Probably /ˈprɒbəbli/adv A1
Something is very likely to happen; you think it will happen.
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So /səʊ/adv A1
Very or to that degree. You use "so" to show how much of something there is.
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Too /tuː/adv A1
Additionally or excessively; more than wanted or needed.
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Also /ˈɔːlsoʊ/adv A1
Plus another thing; in addition to something already mentioned.
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Continuously /kənˈtɪnjuəsli/adv B1
Continuously = non-stop, never pausing. Rain continuously for hours means it never stopped.
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Forth /fɔːrθ/adv B1
Moving or going forward in direction or time; continuing ahead.
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None /nʌn/adv A1
Meaning not any or zero; used when something does not exist or is absent.
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Obviously /ˈɒbviəsli/adv A2
In a way that is very clear or easy to understand.
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Often /ˈɔːfən/adv A1
Happening or done many times, not rarely.
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Once /wʌns/adv A1
A single time before; it happened one time in the past.
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Personally /ˈpɜːrsənəli/adv A2
Expressing what you think or feel based on your own experience and opinion.
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Properly /ˈprɒpəli/adv A2
Done the right way, following the rules.
How to Use Words Containing "O"
Scrabble and Word Games
In Scrabble and Words With Friends, words containing "O" can be valuable when you need to play through an existing tile on the board. Higher-tier letters like J, Q, X, and Z multiply your score quickly when stacked on bonus squares — scan the list below for short words that contain them. Two and three-letter words containing "O" are especially useful for parallel plays where you build along an existing word and earn points for every adjacent tile.
Crossword Puzzles
For crossword puzzles, the most useful entries are mid-length common words — 5 to 8 letters — that fit standard grid patterns. Filter the list by length to match the cells in your clue. Pay attention to the CEFR level: clues from mainstream newspapers favour B1–B2 vocabulary, while themed and cryptic puzzles draw on rarer C1 and C2 words. The IPA shown on each card also helps confirm a guess — a clue marked "two syllables" should match a word with a simple stress pattern.
Creative Writing and Poetry
Writers and poets often look for groups of words containing "O" to build alliteration, rhythm, or near-rhymes. Sort the list by length, scan the rare and C1+ words for fresh imagery, and use the linked dictionary entries to confirm connotation before you commit. The plain-English definitions are intentionally short so you can scan dozens of options without losing flow.
Longest Word Containing "O"
Frequently Asked Questions About Words Containing "O"
- How many words containing "O"?
- There are 116,888 words containing "O" in our 199,000-word English dictionary. The list ranges from common everyday words to rarer specialised vocabulary.
- What is the longest word containing "O"?
- The longest word containing "O" in our list is "ABSTRACTIONISMS" — 15 letters long. Tap the word to see its full definition.
- Are these words valid in Scrabble?
- Most of the words in this list are valid in Scrabble and similar word games (we cross-reference standard tournament dictionaries). A handful of proper nouns and very rare technical terms may not be — when in doubt, double-check with the official Scrabble dictionary used in your league.
- How many 5-letter words containing "O"?
- 3,875 5-letter words containing "O" — useful for Wordle, daily puzzles, and short crosswords. Filter by length above to see only 5-letter results.