Which to use
“primus” is a noun and “promus” is an adjective - they look or sound alike but fill different roles in a sentence.
- #45,244
- “primus” frequency rank
- #29,924
- “promus” frequency rank
- 75168
- confusion score
Side-by-Side Comparison
| Feature | primus | promus |
|---|---|---|
| Definition | Réchaud à pétrole pressurisé par une pompe manuelle | Masculin pluriel de promu. |
Where the eye mixes primus and promus
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. primus and promus follow the identical consonant-vowel pattern (CCVCVC). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: primus vs promus
These two trip readers on the page rather than in the ear: primus is \pʁi.mys\ while promus is \pʁɔ.my\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - i in “primus” becomes o in “promus”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 75168, derived from the frequency rank of both members and their visual similarity.
primus is recorded at frequency rank #45,244, classified as anoun, pronounced \pʁi.mys\. promus is at rank #29,924, tagged as anadj, pronounced \pʁɔ.my\.
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 75168, this pair ranks #34,913 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of primus vs promus
Shared letters: mprsu. Private to "primus": i. Private to "promus": o.
"primus" · 6 letters · shape CCVCVC · "promus" · 6 letters · shape CCVCVC
Known mistypes of this pair
Frequently Asked Questions
Do "primus" and "promus" mean the same thing in a sentence?
In ordinary French text, does "primus" or "promus" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "primus" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "promus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #34,913 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "primus" and "promus" also get mixed up with nearby pairs, the highest-scored neighbour is "primeurs vs primus". 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 #34,913 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.