cucvscucoTell them apart

Which to use

“cuc” and “cuco” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#49,555
“cuc” frequency rank
#26,386
“cuco” frequency rank
75941
confusion score

Side-by-Side Comparison

Feature cuc cuco
Definition Gusano. Nombre de diversas especies de aves pertenecientes a la familia de los cucúlidos. La mayoría son insectívoras. Muchos cucos son parásitos de otras aves.

Where the eye mixes cuc and cuco

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. cuc runs 3 letters (CVC) against cuco's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.

3 ch
cuc
4 ch
cuco

Visual trap between cuc and cuco

A purely visual mix-up. cuc (/kuk/) and cuco ([ˈkuko]) 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 extra letter(s) - “cuc” sits inside “cuco”. Our composite confusion score for this pair is 75941, derived from the frequency rank of both members and their visual similarity.

cuc is recorded at frequency rank #49,555, classified as anoun, pronounced /kuk/. cuco is at rank #26,386, tagged as anoun, pronounced [ˈkuko].

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 75941, this pair ranks #18,611 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of cuc vs cuco

Shared letters: cu. Private to "cuc": -. Private to "cuco": o.

"cuc" · 3 letters · shape CVC  ·  "cuco" · 4 letters · shape CVCV

Known mistypes of this pair

  • cuco ← ccuco · ccuo · cucco · cuoc · ucco

Frequently Asked Questions

Can "cuc" and "cuco" be used interchangeably?
No. They are said differently (/kuk/ versus [ˈkuko]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "cuc" or "cuco" show up more?
"cuco" is the more common of the two: it sits at frequency rank #26,386 in our Spanish list, against #49,555 for "cuc". 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 "cuc" and "cuco" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "cuc" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cuco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,611 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "cuc" and "cuco" also get mixed up with nearby pairs, the highest-scored neighbour is "cuc vs curt". 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 #18,611 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list