necvsnisWhich spelling fits?

Quick tell: nec is a adverb, nis is a verb, so they fill different roles in a sentence.

Which to use

“nec” is an adverb and “nis” is a verb - they look or sound alike but fill different roles in a sentence.

#27,146
“nec” frequency rank
#49,821
“nis” frequency rank
76967
confusion score

Side-by-Side Comparison

Feature nec nis
Definition Et ne pas, ni, non plus, mais… ne pas. Participe actif présent du verbe ní (« se déplacer »).

Where the eye mixes nec and nis

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. nec and nis follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
nec
3 ch
nis

Why the eye confuses nec with nis

These two trip readers on the page rather than in the ear: nec is \ˈnek\ while nis is \nis\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adverb vs verb), which is usually the fastest check. Our composite confusion score for this pair is 76967, derived from the frequency rank of both members and their visual similarity.

nec is recorded at frequency rank #27,146, classified as anadv, pronounced \ˈnek\. nis is at rank #49,821, tagged as averb, pronounced \nis\.

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 76967, this pair ranks #29,670 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of nec vs nis

Shared letters: n. Private to "nec": ce. Private to "nis": is.

"nec" · 3 letters · shape CVC  ·  "nis" · 3 letters · shape CVC

Frequently Asked Questions

Can "nec" and "nis" be used interchangeably?
No - they are not even the same part of speech. "nec" is an adverb and "nis" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "nec" or "nis"?
"nec" is the more common of the two: it sits at frequency rank #27,146 in our French list, against #49,821 for "nis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "nec" and "nis" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "nec" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "nis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #29,670 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "nec" and "nis" also get mixed up with nearby pairs, the highest-scored neighbour is "nis vs nop". Nearby pair

Confusion rank #29,670 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list