défoncévsdéfoncerWhat's the difference?

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

Which to use

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

#13,773
“défoncé” frequency rank
#12,145
“défoncer” frequency rank
25918
confusion score

Side-by-Side Comparison

Feature défoncé défoncer
Definition Percé, troué, perforé. Dégarnir de son fond.

Where the spellings diverge

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

7 ch
défoncé
8 ch
défoncer

Spelling & Dictionary Insight

Say them out loud and nothing separates them: défoncé and défoncer carry the same recorded pronunciation, \de.fɔ̃.se\. Grammar is what tells them apart: one is anadjective, the other averb, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 25918, derived from the frequency rank of both members and their visual similarity.

défoncé is recorded at frequency rank #13,773, classified as anadj, pronounced \de.fɔ̃.se\. défoncer is at rank #12,145, tagged as averb, pronounced \de.fɔ̃.se\.

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 25918, this pair ranks #338,134 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of défoncé vs défoncer

Shared letters: cdfnoé. Private to "défoncé": -. Private to "défoncer": er.

"défoncé" · 7 letters · shape CVCVCCV  ·  "défoncer" · 8 letters · shape CVCVCCVC

Frequency comparison

défoncé#13,773
défoncer#12,145

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "défoncé" and "défoncer" be used interchangeably?
No - they are not even the same part of speech. "défoncé" is an adjective and "défoncer" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "défoncé" or "défoncer"?
"défoncer" is the more common of the two: it sits at frequency rank #12,145 in our French list, against #13,773 for "défoncé". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering défoncé vs défoncer

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “défoncé”; for a verb, it's “défoncer”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “défoncé” 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