2,183 Words That End With "O"
2,183 words that end with "O" in our 199K-word dictionary.
Browse the complete list of 2,183 English words ending with "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 That End With "O" (Top 1k)
Less Common Words That End With "O" (Top 5k+)
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Also /ˈɔːlsoʊ/adv A1
Plus another thing; in addition to something already mentioned.
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Avocado /aevəkɑːdoʊ/noun A2
Avocado is a soft green fruit that you can spread on toast or add to salads.
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Buffalo /ˈbʌf.ə.loʊ/noun B1
Huge animal with curved horns living in African and Asian grasslands.
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Crypto /ˈkrɪptoʊ/noun B2
Digital money like Bitcoin and Ethereum that isn't controlled by governments or banks. It uses special codes to keep transactions secure.
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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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Embargo /ɛmˈbɑːrɡoʊ/noun C1
When a government officially bans buying and selling of goods with another country as a punishment or political action.
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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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Gizmo /ˈɡɪzmoʊ/noun C1
A small machine or device that does something interesting. You might not remember its exact name, so you just call it a 'gizmo'.
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Hello /həˈloʊ/interj A1
A polite word you say when you meet or contact someone.
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Hero /ˈhɪroʊ/noun A2
Someone who does something very brave or kind that helps other people, often at great risk.
588 More Words That End With "O" (definitions coming soon)
Words That End With "O" by Length
2 Letter Words That End With "O" (19)
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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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So /səʊ/adv A1
Very or to that degree. You use "so" to show how much of something there is.
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To /tu/prep A1
Shows where someone or something is going or moving.
See all 19 2-letter words that end with "O" →
3 Letter Words That End With "O" (87)
See all 87 3-letter words that end with "O" →
4 Letter Words That End With "O" (247)
See all 247 4-letter words that end with "O" →
5 Letter Words That End With "O" (413)
See all 413 5-letter words that end with "O" →
6 Letter Words That End With "O" (371)
See all 371 6-letter words that end with "O" →
7 Letter Words That End With "O" (372)
See all 372 7-letter words that end with "O" →
8 Letter Words That End With "O" (304)
See all 304 8-letter words that end with "O" →
9 Letter Words That End With "O" (187)
See all 187 9-letter words that end with "O" →
10 Letter Words That End With "O" (118)
See all 118 10-letter words that end with "O" →
11 Letter Words That End With "O" (37)
See all 37 11-letter words that end with "O" →
12 Letter Words That End With "O" (17)
See all 17 12-letter words that end with "O" →
13 Letter Words That End With "O" (9)
See all 9 13-letter words that end with "O" →
14 Letter Words That End With "O" (2)
Words That End With "O" by Part of Speech
Nouns That End With "O" (32)
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Photo /ˈfoʊtoʊ/noun A1
A picture taken with a camera. You can print it or save it on your computer.
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Two /tuː/noun A1
The quantity that comes after one.
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Who /huː/noun A1
A question word that asks which person or what person's name.
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Hero /ˈhɪroʊ/noun A2
Someone who does something very brave or kind that helps other people, often at great risk.
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Piano /piˈænəʊ/noun A1
A big instrument with many keys that makes music when you press them.
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Radio /ˈreɪdiəʊ/noun A1
A machine that picks up radio signals and plays music, news, and other programs through speakers.
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Video /ˈvɪdiəʊ/noun A2
A recording of pictures and sound that you can watch on a screen like TV, computer, or phone.
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Avocado /aevəkɑːdoʊ/noun A2
Avocado is a soft green fruit that you can spread on toast or add to salads.
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Buffalo /ˈbʌf.ə.loʊ/noun B1
Huge animal with curved horns living in African and Asian grasslands.
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Crypto /ˈkrɪptoʊ/noun B2
Digital money like Bitcoin and Ethereum that isn't controlled by governments or banks. It uses special codes to keep transactions secure.
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Ipo /ˌaɪpiːˈoʊ/noun C1
When a company sells its stocks to the public for the first time. Before an IPO, only private investors own shares; after, anyone can buy them on the stock market.
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Kangaroo /ˌkæŋɡəˈruː/noun A2
A large marsupial from Australia with big back legs and a long tail that moves by jumping.
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Portfolio /pɔːrˈfoʊliˌoʊ/noun B2
All the investments someone owns. If you own 10 stocks, 5 bonds, and some real estate, your portfolio includes all of them together.
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Potato /pəˈteɪtoʊ/noun A1
A round brown or white vegetable that grows in soil.
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Ratio /ˈreɪʃoʊ/noun B2
A way of comparing two numbers or amounts. If you have 3 boys and 2 girls, the ratio is 3:2 (three to two).
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Studio /ˈstjuːdiəʊ/noun A2
A workspace where artists create their work.
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Tomato /təˈmɑːtoʊ/noun A1
A red or orange round fruit eaten as vegetable in salads.
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Yo-yo /ˈjoʊjoʊ/noun B1
A toy that goes up and down on a string.
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Zero /ˈzɪroʊ/noun A1
The number 0; nothing or the lowest point.
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Zoo /zuː/noun A1
A place where wild animals are kept and shown to people.
See all 32 nouns that end with "O" →
Verbs That End With "O" (5)
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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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Demo /ˈdɛm.oʊ/verb B1
to perform a hands-on showing of something so people understand how it functions
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Overdo /ˌoʊvərˈduː/verb B1
To do something too much or work too hard beyond what is necessary.
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Undergo /ˌʌndərˈɡoʊ/verb C1
To experience or go through something. Often used for difficult processes or changes that happen to someone.
See all 5 verbs that end with "O" →
Adjectives That End With "O" (0)
No adjectives entries yet — coming soon.
Adverbs That End With "O" (5)
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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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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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Ergo /ˈɜːrɡoʊ/adv C2
Therefore; used to introduce a conclusion that follows logically from what was stated before.
How to Use Words That End With "O"
Scrabble and Word Games
In Scrabble and Words With Friends, words ending with "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 ending with "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 ending with "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 That End With "O"
Frequently Asked Questions About Words That End With "O"
- How many words ending with "O"?
- There are 2,183 words ending with "O" in our 199,000-word English dictionary. The list ranges from common everyday words to rarer specialised vocabulary.
- What is the longest word ending with "O"?
- The longest word ending with "O" in our list is "CHURRIGUERESCO" — 14 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 ending with "O"?
- 413 5-letter words ending with "O" — useful for Wordle, daily puzzles, and short crosswords. Filter by length above to see only 5-letter results.