centvscerTell them apart

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

Which to use

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

#1,854
“cent” frequency rank
#46,052
“cer” frequency rank
47906
confusion score

Side-by-Side Comparison

Feature cent cer
Definition Quatre-vingt-dix-neuf plus un, soit dix fois dix, correspondant au nombre 100. Ciel.

Where the eye mixes cent and cer

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
cent
3 ch
cer

Visual trap between cent and cer

These two trip readers on the page rather than in the ear: cent is \sɑ̃\ while cer is \ˈʧeɾ\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 47906, derived from the frequency rank of both members and their visual similarity.

cent is recorded at frequency rank #1,854, classified as anadj, pronounced \sɑ̃\. cer is at rank #46,052, tagged as anoun, pronounced \ˈʧeɾ\.

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 47906, this pair ranks #183,189 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cent vs cer

Shared letters: ce. Private to "cent": nt. Private to "cer": r.

"cent" · 4 letters · shape CVCC  ·  "cer" · 3 letters · shape CVC

Known mistypes of this pair

  • centccent · cennt · centt · cetn · cnet · ecnt

Frequently Asked Questions

Is swapping "cent" for "cer" ever safe?
No - they are not even the same part of speech. "cent" is an adjective and "cer" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cent" or "cer"?
"cent" is the more common of the two: it sits at frequency rank #1,854 in our French list, against #46,052 for "cer". 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 "cent" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cer" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #183,189 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cent" and "cer" also get mixed up with nearby pairs, the highest-scored neighbour is "cer vs ciro". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #183,189 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