4,725 Words Containing "IR"
4,725 words containing "IR" in our 199K-word dictionary.
Browse the complete list of 4,725 English words containing "IR". 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 "IR" (Top 1k)
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Air /eər/noun A1
The breathable gas all around us. We cannot see it, but we need it to live.
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Bird /bɜːrd/noun A1
A living creature with feathers, wings, and a beak that can fly.
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Birth /bɜːrθ/noun A1
When a baby comes out of the mother's body and is born.
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Birthday /ˈbɜːrθdeɪ/noun A1
The day each year when you celebrate being born.
Less Common Words Containing "IR" (Top 5k+)
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Acquire /əˈkwaɪər/verb B1
To get or obtain something that you did not have before.
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Acquired /əˈkwaɪərd/adj B2
Something you got or learned through doing it repeatedly or working at it over time. Not something you were born with.
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Affair /əˈfeər/noun B1
An event or issue that someone needs to deal with or that is being discussed.
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Airline /ˈeəraɪn/noun A2
A company that flies planes to carry people from one place to another.
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Airplane /ˈeəpleɪn/noun A1
A large vehicle with wings that flies through the sky carrying people and things.
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Airport /ˈeərpɔːrt/noun A1
A large place with runways where airplanes take off and land, and where people get on or off planes.
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Besmirch /bɪˈsmɜːtʃ/verb C2
To harm someone's reputation or to make someone's character look bad by doing something shameful or wrong.
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Chair /tʃɛr/noun A1
A piece of furniture you sit on, usually with a back and legs, designed for one person.
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Circle /ˈsɜːkəl/noun A1
A perfectly round shape like the sun or a wheel; all edges are the same distance from the middle
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Confirm /kənˈfɜːm/verb B1
To say yes to something or make sure it is true.
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Desire /dɪˈzaɪər/verb B2
To wish for something or want it very much.
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Direct /dɪˈrɛkt/adj B1
Happening in a straight line without detours; also means honest and clear.
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Director /dɪˈrɛktər/noun B1
A person who manages a company, movie, or organization and makes important decisions.
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Dirt /dɜːrt/noun A2
Soil, mud, or any unclean substance on something.
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Dirty /ˈdɜːrti/adj A1
Not clean; covered with something that makes it need washing.
581 More Words Containing "IR" (definitions coming soon)
Words Containing "IR" by Length
2 Letter Words Containing "IR" (1)
See all 1 2-letter words containing "IR" →
3 Letter Words Containing "IR" (13)
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Air /eər/noun A1
The breathable gas all around us. We cannot see it, but we need it to live.
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Sir /sɜːr/noun A1
A respectful word to speak to or about a man.
See all 13 3-letter words containing "IR" →
4 Letter Words Containing "IR" (83)
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Bird /bɜːrd/noun A1
A living creature with feathers, wings, and a beak that can fly.
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Dirt /dɜːrt/noun A2
Soil, mud, or any unclean substance on something.
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Fair /fer/adj A2
Treating everyone the same way; not favoring one person over another.
See all 83 4-letter words containing "IR" →
5 Letter Words Containing "IR" (224)
See all 224 5-letter words containing "IR" →
6 Letter Words Containing "IR" (374)
See all 374 6-letter words containing "IR" →
7 Letter Words Containing "IR" (557)
See all 557 7-letter words containing "IR" →
8 Letter Words Containing "IR" (739)
See all 739 8-letter words containing "IR" →
9 Letter Words Containing "IR" (786)
See all 786 9-letter words containing "IR" →
10 Letter Words Containing "IR" (635)
See all 635 10-letter words containing "IR" →
11 Letter Words Containing "IR" (467)
See all 467 11-letter words containing "IR" →
12 Letter Words Containing "IR" (337)
See all 337 12-letter words containing "IR" →
13 Letter Words Containing "IR" (240)
See all 240 13-letter words containing "IR" →
14 Letter Words Containing "IR" (167)
See all 167 14-letter words containing "IR" →
15 Letter Words Containing "IR" (102)
Words Containing "IR" by Part of Speech
Nouns Containing "IR" (48)
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Air /eər/noun A1
The breathable gas all around us. We cannot see it, but we need it to live.
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Bird /bɜːrd/noun A1
A living creature with feathers, wings, and a beak that can fly.
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Birth /bɜːrθ/noun A1
When a baby comes out of the mother's body and is born.
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Birthday /ˈbɜːrθdeɪ/noun A1
The day each year when you celebrate being born.
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Pair /pɛər/noun A1
Two things that match or belong together, like two shoes.
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Shirt /ʃɜːrt/noun A1
A piece of clothing for the upper body, usually with sleeves.
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Sir /sɜːr/noun A1
A respectful word to speak to or about a man.
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Chair /tʃɛr/noun A1
A piece of furniture you sit on, usually with a back and legs, designed for one person.
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Dirt /dɜːrt/noun A2
Soil, mud, or any unclean substance on something.
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Girl /ɡɜːrl/noun A1
A young female person, from childhood through early adulthood.
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Hair /hɛr/noun A1
The thin strands that grow from your head and body.
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Mirror /ˈmɪrər/noun A1
A glass surface where you see your reflection.
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Skirt /skɜːrt/noun A2
A piece of clothing worn around the waist, usually by women.
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Tire /ˈtaɪər/noun A1
The round rubber part on a car or bicycle wheel.
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Virus /ˈvaɪrəs/noun B1
A tiny germ that causes infections and spreads between people.
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Affair /əˈfeər/noun B1
An event or issue that someone needs to deal with or that is being discussed.
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Airline /ˈeəraɪn/noun A2
A company that flies planes to carry people from one place to another.
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Airplane /ˈeəpleɪn/noun A1
A large vehicle with wings that flies through the sky carrying people and things.
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Airport /ˈeərpɔːrt/noun A1
A large place with runways where airplanes take off and land, and where people get on or off planes.
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Circle /ˈsɜːkəl/noun A1
A perfectly round shape like the sun or a wheel; all edges are the same distance from the middle
See all 48 nouns containing "IR" →
Verbs Containing "IR" (15)
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Fire /ˈfaɪər/verb A2
To end someone's employment at a company or organization, usually because of poor performance or misconduct.
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Hire /ˈhaɪər/verb A2
To give someone a job and pay them to do work.
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Inquire /ɪnˈkwaɪr/verb B1
Ask questions to get information or details from someone.
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Iron /ˈaɪən/verb A1
To flatten wrinkles in clothes using a hot tool called an iron.
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Stir /stɝ/verb A2
To move liquid or powder round with a spoon.
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Acquire /əˈkwaɪər/verb B1
To get or obtain something that you did not have before.
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Confirm /kənˈfɜːm/verb B1
To say yes to something or make sure it is true.
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Desire /dɪˈzaɪər/verb B2
To wish for something or want it very much.
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Enquire /ɪnˈkwaɪər/verb B1
To ask questions to get information. British spelling of 'inquire'.
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Repair /rɪˈpeər/verb A1
To fix something that is broken so it works again.
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Require /rɪˈkwaɪr/verb B2
To need something or demand that something must be done.
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Besmirch /bɪˈsmɜːtʃ/verb C2
To harm someone's reputation or to make someone's character look bad by doing something shameful or wrong.
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Circumvent /ˌsɜːrkəmˈvent/verb C2
To find a clever way around a problem or rule instead of dealing with it directly. It's like finding a back door when the front door is blocked.
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Reaffirm /ˌriːəˈfɜːrm/verb C1
To say something again firmly, to make sure people believe it is still true and important.
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Shirk /ʃɜːrk/verb C2
To refuse to do something you should do or are expected to do. To try to get out of work or responsibility.
See all 15 verbs containing "IR" →
Adjectives Containing "IR" (18)
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First /fɜːrst/adj A1
Coming at the beginning; happening before anything else in a sequence.
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Dirty /ˈdɜːrti/adj A1
Not clean; covered with something that makes it need washing.
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Fair /fer/adj A2
Treating everyone the same way; not favoring one person over another.
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Firm /fɜːrm/adj A2
Hard or solid; not moving or changing easily; maintaining its shape under pressure.
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Spiritual /ˈspɪr.ɪ.tʃu.əl/adj B2
Related to inner feelings, beliefs, and connection to something beyond the physical world. Often about personal faith, not necessarily organized religion.
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Third /θɜːrd/adj A1
The position that comes after number two in order.
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Acquired /əˈkwaɪərd/adj B2
Something you got or learned through doing it repeatedly or working at it over time. Not something you were born with.
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Direct /dɪˈrɛkt/adj B1
Happening in a straight line without detours; also means honest and clear.
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Empirical /ɪmˈpɪrɪkəl/adj C1
Based on facts you can see, measure, or test yourself—not just ideas or theories. You prove it by doing experiments or gathering data.
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Entire /ɪnˈtɪər/adj B1
Something that is whole and nothing is missing from it.
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Thirsty /ˈθɜːrsti/adj A1
Wanting water because your mouth is dry.
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Wireless /ˈwaɪərləs/adj B1
Working without cables or wires connected; uses signals through the air instead.
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Circumspect /ˈsɜːkəmspekt/adj C1
Thinking carefully about what could happen before you do something; being very thoughtful about possible problems.
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Environmental /ˌenvɪrənˈmɛntəl/adj B1
Connected to nature, weather, animals, and the planet's health.
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Quirky /ˈkwɜːki/adj B2
A little strange or unusual, but in a likeable way
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Tireless /ˈtaɪərləs/adj B2
Working very hard with lots of energy and never getting tired. Someone who keeps going and going without stopping.
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Viral /ˈvaɪrəl/adj B2
Content that spreads very quickly online because people keep sharing it with friends.
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Irrefutable /ɪˈrefj(ə)təbəl/adj C2
Logical impossibility of refutation
See all 18 adjectives containing "IR" →
Adverbs Containing "IR" (2)
How to Use Words Containing "IR"
Scrabble and Word Games
In Scrabble and Words With Friends, words containing "IR" 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 "IR" 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 "IR" 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 "IR"
Frequently Asked Questions About Words Containing "IR"
- How many words containing "IR"?
- There are 4,725 words containing "IR" in our 199,000-word English dictionary. The list ranges from common everyday words to rarer specialised vocabulary.
- What is the longest word containing "IR"?
- The longest word containing "IR" in our list is "ADMIRABLENESSES" — 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 "IR"?
- 224 5-letter words containing "IR" — useful for Wordle, daily puzzles, and short crosswords. Filter by length above to see only 5-letter results.