Which to use
“plongée” is a noun and “prolongée” is an adjective - they look or sound alike but fill different roles in a sentence.
- #7,739
- “plongée” frequency rank
- #9,537
- “prolongée” frequency rank
- 17276
- confusion score
Side-by-Side Comparison
| Feature | plongée | prolongée |
|---|---|---|
| Definition | Action de plonger ; état de celui qui plonge. | Féminin singulier de prolongé. |
Where the spellings diverge
Shared letters are muted; the letters that actually set plongée and prolongée apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: plongée is \plɔ̃.ʒe\ while prolongée is \pʁɔ.lɔ̃.ʒe\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 17276, derived from the frequency rank of both members and their visual similarity.
plongée is recorded at frequency rank #7,739, classified as anoun, pronounced \plɔ̃.ʒe\. prolongée is at rank #9,537, tagged as anadj, pronounced \pʁɔ.lɔ̃.ʒe\.
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 17276, this pair ranks #383,951 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of plongée vs prolongée
Shared letters: eglnopé. Private to "plongée": -. Private to "prolongée": r.
"plongée" · 7 letters · shape CCVCCVV · "prolongée" · 9 letters · shape CCVCVCCVV
Frequency comparison
Frequently Asked Questions
Can "plongée" and "prolongée" be used interchangeably?
Which is more common, "plongée" or "prolongée"?
Remembering plongée vs prolongée
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “plongée”; for an adjective, it's “prolongée”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “plongée” entry
- Browse more pairs most likely to be confused. Most confusable