favsfoWhat's the difference?

Which to use

“fa” and “fo” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#6,701
“fa” frequency rank
#9,484
“fo” frequency rank
16185
confusion score

Side-by-Side Comparison

Feature fa fo
Definition La quatrième note de la gamme en musique occidentale. Folio.

Where the eye mixes fa and fo

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch
fa
2 ch
fo

Look-alike desk: fa vs fo

A purely visual mix-up. fa (\fa\) and fo (\fɔ.ljo\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - a in “fa” becomes o in “fo”. Our composite confusion score for this pair is 16185, derived from the frequency rank of both members and their visual similarity.

fa is recorded at frequency rank #6,701, classified as anoun, pronounced \fa\. fo is at rank #9,484, tagged as anoun, pronounced \fɔ.ljo\.

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 16185, this pair ranks #388,982 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fa vs fo

Shared letters: f. Private to "fa": a. Private to "fo": o.

"fa" · 2 letters · shape CV  ·  "fo" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "fa" for "fo" ever safe?
No. They are said differently (\fa\ versus \fɔ.ljo\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "fa" or "fo"?
"fa" is the more common of the two: it sits at frequency rank #6,701 in our French list, against #9,484 for "fo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "fa" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #388,982 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fa" and "fo" also get mixed up with nearby pairs, the highest-scored neighbour is "Fee vs fo". Nearby pair

Confusion rank #388,982 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list