servssuuWhat's the difference?

Quick tell: ser is a pronoun, suu is an adjective, so they fill different roles in a sentence.

Which to use

“ser” is a pronoun and “suu” is an adjective - they look or sound alike but fill different roles in a sentence.

#15,252
“ser” frequency rank
#49,960
“suu” frequency rank
65212
confusion score

Side-by-Side Comparison

Feature ser suu
Definition Que. Son.

Letter map: ser vs suu

Shared letters muted; letters that set ser and suu apart highlighted. Shared run: 1. ser (CVC) and suu (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
ser
3 ch
suu

Part-of-speech tell for ser / suu

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ser is apronoun and suuanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 65212, derived from the frequency rank of both members and their visual similarity.

ser is recorded at frequency rank #15,252, classified as apron. suu is at rank #49,960, tagged as anadj, pronounced \ˈsuː\.

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 65212, this pair ranks #73,345 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of ser vs suu

Shared letters: s. Private to "ser": er. Private to "suu": u.

"ser" · 3 letters · shape CVC  ·  "suu" · 3 letters · shape CVV

Frequently Asked Questions

Can "ser" and "suu" be used interchangeably?
No - they are not even the same part of speech. "ser" is a pronoun and "suu" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ser" vs "suu" - which ranks higher?
"ser" is the more common of the two: it sits at frequency rank #15,252 in our French list, against #49,960 for "suu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "ser" vs "suu" is on the table, pick a follow-up below.

  • Full dictionary entry for "ser" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "suu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #73,345 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ser" and "suu" also get mixed up with nearby pairs, the highest-scored neighbour is "SSR vs suu". Nearby pair

Confusion rank #73,345 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