NCISvsNilTell them apart

Which to use

“NCIS” and “Nil” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#31,625
“NCIS” frequency rank
#13,436
“Nil” frequency rank
45061
confusion score

Side-by-Side Comparison

Feature NCIS Nil
Definition Service des enquêtes criminelles de la marine des États-Unis. Très long fleuve africain, qui traverse le Rwanda, le Burundi, la Tanzanie, l’Ouganda, l’Éthiopie, le Soudan et enfin l’Égypte.

Where the eye mixes NCIS and Nil

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
NCIS
3 ch
Nil

Why the eye confuses NCIS with Nil

A purely visual mix-up. NCIS (\ɛn.se.i.ɛs\) and Nil (\nil\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 45061, derived from the frequency rank of both members and their visual similarity.

NCIS is recorded at frequency rank #31,625, classified as aname, pronounced \ɛn.se.i.ɛs\. Nil is at rank #13,436, tagged as aname, pronounced \nil\.

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 45061, this pair ranks #205,710 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of NCIS vs Nil

Shared letters: in. Private to "NCIS": cs. Private to "Nil": l.

"NCIS" · 4 letters · shape CCVC  ·  "Nil" · 3 letters · shape CVC

Known mistypes of this pair

  • NCIScnis · nccis · nciss · ncsi · nics · nncis

Frequently Asked Questions

Is swapping "NCIS" for "Nil" ever safe?
No. They are said differently (\ɛn.se.i.ɛs\ versus \nil\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "NCIS" vs "Nil" - which ranks higher?
"Nil" is the more common of the two: it sits at frequency rank #13,436 in our French list, against #31,625 for "NCIS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "NCIS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Nil" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #205,710 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "NCIS" and "Nil" also get mixed up with nearby pairs, the highest-scored neighbour is "NCIS vs nis". 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 #205,710 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