Which to use
“fai” is a verb and “fer” is a noun - they look or sound alike but fill different roles in a sentence.
- #40,830
- “fai” frequency rank
- #14,849
- “fer” frequency rank
- 55679
- confusion score
Side-by-Side Comparison
| Feature | fai | fer |
|---|---|---|
| Definition | Tercera persona del singular (el, ela, vostede) del presente de indicativo de facer. | Mutación aspirada del sustantivo colectivo per ('peras') |
Where the eye mixes fai and fer
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: fai vs fer
These two trip readers on the page rather than in the ear: fai is [ˈfa̠j] while fer is [ˈf̬eːr]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 55679, derived from the frequency rank of both members and their visual similarity.
fai is recorded at frequency rank #40,830, classified as averb, pronounced [ˈfa̠j]. fer is at rank #14,849, tagged as anoun, pronounced [ˈf̬eːr].
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 55679, this pair ranks #77,846 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of fai vs fer
Shared letters: f. Private to "fai": ai. Private to "fer": er.
"fai" · 3 letters · shape CVV · "fer" · 3 letters · shape CVC
Frequently Asked Questions
Can "fai" and "fer" be used interchangeably?
Frequency check: "fai" vs "fer" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "fai" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fer" - compare definitions side by side with the headword page. Word entry
- This pair ranks #77,846 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "fai" and "fer" also get mixed up with nearby pairs, the highest-scored neighbour is "fai vs falo". Nearby pair
Confusion rank #77,846 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.