définivsdéfinirWhat's the difference?

Quick tell: défini is a adjective, définir is a verb, so they fill different roles in a sentence.

Which to use

“défini” is an adjective and “définir” is a verb - they look or sound alike but fill different roles in a sentence.

#5,750
“défini” frequency rank
#3,991
“définir” frequency rank
9741
confusion score

Side-by-Side Comparison

Feature défini définir
Definition Qui est caractérisé avec précision. Déterminer avec précision.

Where the spellings diverge

Shared letters are muted; the letters that actually set défini and définir apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

6 ch
défini
7 ch
définir

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: défini is \de.fi.ni\ while définir is \de.fi.niʁ\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “défini” sits inside “définir”, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 9741, derived from the frequency rank of both members and their visual similarity.

défini is recorded at frequency rank #5,750, classified as anadj, pronounced \de.fi.ni\. définir is at rank #3,991, tagged as averb, pronounced \de.fi.niʁ\.

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 9741, this pair ranks #415,591 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of défini vs définir

Shared letters: dfiné. Private to "défini": -. Private to "définir": r.

"défini" · 6 letters · shape CVCVCV  ·  "définir" · 7 letters · shape CVCVCVC

Frequency comparison

défini#5,750
définir#3,991

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "défini" and "définir" be used interchangeably?
No - they are not even the same part of speech. "défini" is an adjective and "définir" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "défini" or "définir"?
"définir" is the more common of the two: it sits at frequency rank #3,991 in our French list, against #5,750 for "défini". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering défini vs définir

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “défini”; for a verb, it's “définir”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “défini” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list