Which to use
“affair” is a noun and “affirm” is a verb - they look or sound alike but fill different roles in a sentence.
- #4,284
- “affair” frequency rank
- #22,277
- “affirm” frequency rank
- 26561
- confusion score
Side-by-Side Comparison
| Feature | affair | affirm |
|---|---|---|
| Definition | Something which is done or is to be done; business of any kind, commercial, professional, or public. | To agree, verify or concur; to answer positively. |
Where the spellings diverge
Shared letters are muted; the letters that actually set affair and affirm apart are highlighted. They share 5 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: affair is /əˈfɛə/ while affirm is /əˈfɝm/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 26561, derived from the frequency rank of both members and their visual similarity.
affair is recorded at frequency rank #4,284, classified as anoun, pronounced /əˈfɛə/. affirm is at rank #22,277, tagged as averb, pronounced /əˈfɝm/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 26561, this pair ranks #385,779 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of affair vs affirm
Shared letters: afir. Private to "affair": -. Private to "affirm": m.
"affair" · 6 letters · shape VCCVVC · "affirm" · 6 letters · shape VCCVCC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "affair" and "affirm" be used interchangeably?
Which is more common, "affair" or "affirm"?
Remembering affair vs affirm
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “affair”; for a verb, it's “affirm”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “affair” entry
- Browse more pairs most likely to be confused. Most confusable