nickvsNICUConfusable pair

Which to use

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

#2,547
“nick” frequency rank
#43,808
“NICU” frequency rank
46355
confusion score

Side-by-Side Comparison

Feature nick NICU
Definition A small cut in a surface. Initialism of neonatal intensive care unit.

Letter map: nick vs NICU

Shared letters muted; letters that set nick and NICU apart highlighted. Shared run: 3. nick (CVCC) and NICU (CVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
nick
4 ch
NICU

Spelling & dictionary notes on nick vs NICU

nick and NICU 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 differ by a single letter - k in “nick” becomes u in “NICU”. Our composite confusion score for this pair is 46355, derived from the frequency rank of both members and their visual similarity.

nick is recorded at frequency rank #2,547, classified as anoun, pronounced /nɪk/. NICU is at rank #43,808, tagged as anoun.

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 46355, this pair ranks #212,568 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of nick vs NICU

Shared letters: cin. Private to "nick": k. Private to "NICU": u.

"nick" · 4 letters · shape CVCC  ·  "NICU" · 4 letters · shape CVCV

Known mistypes of this pair

  • nickinck · ncik · nicck · nickk · nikc · nnick
  • NICUincu · nciu · niccu · niuc · nnicu

Frequently Asked Questions

Do "nick" and "NICU" mean the same thing in a sentence?
No. They differ by a single letter - k in “nick” becomes u in “NICU”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "nick" vs "NICU" - which ranks higher?
"nick" is the more common of the two: it sits at frequency rank #2,547 in our English list, against #43,808 for "NICU". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "nick" and "NICU". Here's where to go from here.

  • Full dictionary entry for "nick" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "NICU" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #212,568 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "nick" and "NICU" also get mixed up with nearby pairs, the highest-scored neighbour is "Naidu vs NICU". 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 #212,568 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