Which to use
“primo” is an adverb and “primus” is a noun - they look or sound alike but fill different roles in a sentence.
- #14,330
- “primo” frequency rank
- #45,244
- “primus” frequency rank
- 59574
- confusion score
Side-by-Side Comparison
| Feature | primo | primus |
|---|---|---|
| Definition | Premièrement, en premier lieu. | Réchaud à pétrole pressurisé par une pompe manuelle |
Where the eye mixes primo and primus
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. primo runs 5 letters (CCVCV) against primus's 6 (CCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: primo vs primus
These two trip readers on the page rather than in the ear: primo is \pʁi.mo\ while primus is \pʁi.mys\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 59574, derived from the frequency rank of both members and their visual similarity.
primo is recorded at frequency rank #14,330, classified as anadv, pronounced \pʁi.mo\. primus is at rank #45,244, tagged as anoun, pronounced \pʁi.mys\.
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 59574, this pair ranks #102,403 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of primo vs primus
Shared letters: impr. Private to "primo": o. Private to "primus": su.
"primo" · 5 letters · shape CCVCV · "primus" · 6 letters · shape CCVCVC
Known mistypes of this pair
Frequently Asked Questions
Do "primo" and "primus" mean the same thing in a sentence?
Which is more common, "primo" or "primus"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "primo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "primus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #102,403 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "primo" and "primus" 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 #102,403 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.