Which to use
“FAA” is a name and “fan” is a noun - they look or sound alike but fill different roles in a sentence.
- #14,944
- “FAA” frequency rank
- #1,270
- “fan” frequency rank
- 16214
- confusion score
Side-by-Side Comparison
| Feature | FAA | fan |
|---|---|---|
| Definition | Initialism of Federal Aviation Administration (agency regulating U.S. aviation). | A hand-held device consisting of concertinaed material, or slats of material, gathered together at one end, that may be opened out into the shape of a sector of a circle and waved back and forth in order to move air towards oneself and cool oneself. |
Where the spellings diverge
Shared letters are muted; the letters that actually set FAA and fan apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
FAA and fan form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - a in “FAA” becomes n in “fan” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 16214, derived from the frequency rank of both members and their visual similarity.
FAA is recorded at frequency rank #14,944, classified as aname. fan is at rank #1,270, tagged as anoun, pronounced /fæn/.
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 16214, this pair ranks #459,165 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Frequency comparison
Frequently Asked Questions
Can "FAA" and "fan" be used interchangeably?
Remembering FAA vs fan
The fastest way to pick the right one every time.
- Check the role first: if you need a name, it's “FAA”; for a noun, it's “fan”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “FAA” entry
- Browse more pairs most likely to be confused. Most confusable