NCOvsnitTell them apart

Which to use

“NCO” and “nit” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#44,957
“NCO” frequency rank
#25,859
“nit” frequency rank
70816
confusion score

Side-by-Side Comparison

Feature NCO nit
Definition Initialism of numerically controlled oscillator. The egg of a louse.

Letter map: NCO vs nit

Shared letters muted; letters that set NCO and nit apart highlighted. Shared run: 1.

3 ch
NCO
3 ch
nit

Corpus notes: NCO and nit

NCO and nit are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 70816, derived from the frequency rank of both members and their visual similarity.

NCO is recorded at frequency rank #44,957, classified as anoun. nit is at rank #25,859, tagged as anoun, pronounced /nɪt/.

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 70816, this pair ranks #49,081 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of NCO vs nit

Shared letters: n. Private to "NCO": co. Private to "nit": it.

"NCO" · 3 letters · shape CCV  ·  "nit" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "NCO" for "nit" ever safe?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "NCO" vs "nit" - which ranks higher?
"nit" is the more common of the two: it sits at frequency rank #25,859 in our English list, against #44,957 for "NCO". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "NCO" vs "nit" is on the table, pick a follow-up below.

  • Full dictionary entry for "NCO" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "nit" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #49,081 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "NCO" and "nit" also get mixed up with nearby pairs, the highest-scored neighbour is "NCO vs NPL". Nearby pair

Confusion rank #49,081 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list