21 in English: how to spell and say twenty-one
twenty-one
/ˈtwenti wʌn/
Short answer
21 is written twenty-one in English and pronounced /ˈtwenti wʌn/. It is written with a hyphen. The ordinal form is 21st, written twenty-first. The number before it is 20 (twenty) and the number after it is 22 (twenty-two). 21 is an odd number. 21 is 2 tens and 1 ones. In Roman numerals it is XXI.
Key facts
- In digits
- 21
- In words
- twenty-one
- Pronunciation
- /ˈtwenti wʌn/
- Ordinal form
- 21st · twenty-first
- Number before
- 20 · twenty
- Number after
- 22 · twenty-two
- Odd or even
- odd
- Roman numeral
- XXI
- Word list
- Numbers 1 to 100 in English: Words and Pronunciation
Numbers near 21
Practice on screen
Look at the picture or number and choose the right English word. Ten questions each round.
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Questions and answers
How do you spell 21 in English?
21 is spelled twenty-one.
How do you pronounce twenty-one?
Twenty-one is pronounced /ˈtwenti wʌn/. Press the listen button on this page to hear it.
What is 21 as an ordinal number?
21 as an ordinal number is 21st, written twenty-first.
What number comes after 21?
After 21 comes 22, written twenty-two.
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