bonvsbusTell them apart

Quick tell: bon is a adjective, bus is a noun, so they fill different roles in a sentence.

Which to use

“bon” is an adjective and “bus” is a noun - they look or sound alike but fill different roles in a sentence.

#108
“bon” frequency rank
#1,508
“bus” frequency rank
1616
confusion score

Side-by-Side Comparison

Feature bon bus
Definition Qui a des qualités conformes à ce que l’on attendait. Véhicule de transport en commun routier pouvant transporter plusieurs dizaines de passagers.

Where the eye mixes bon and bus

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

3 ch
bon
3 ch
bus

Why the eye confuses bon with bus

These two trip readers on the page rather than in the ear: bon is \bɔ̃\ while bus is \bys\. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 1616, derived from the frequency rank of both members and their visual similarity.

bon is recorded at frequency rank #108, classified as anadj, pronounced \bɔ̃\. bus is at rank #1,508, tagged as anoun, pronounced \bys\.

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 1616, this pair ranks #437,707 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bon vs bus

Shared letters: b. Private to "bon": no. Private to "bus": su.

"bon" · 3 letters · shape CVC  ·  "bus" · 3 letters · shape CVC

Frequently Asked Questions

Can "bon" and "bus" be used interchangeably?
No - they are not even the same part of speech. "bon" is an adjective and "bus" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "bon" or "bus" show up more?
"bon" is the more common of the two: it sits at frequency rank #108 in our French list, against #1,508 for "bus". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "bon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #437,707 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "bon" and "bus" also get mixed up with nearby pairs, the highest-scored neighbour is "bury vs bus". Nearby pair

Confusion rank #437,707 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