cesóvscosTell them apart

Quick tell: cesó is a verb, cos is a noun, so they fill different roles in a sentence.

Which to use

“cesó” is a verb and “cos” is a noun - they look or sound alike but fill different roles in a sentence.

#22,977
“cesó” frequency rank
#23,736
“cos” frequency rank
46713
confusion score

Side-by-Side Comparison

Feature cesó cos
Definition Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del pretérito perfecto simple de indicativo de cesar. Cuerpo.

Where the eye mixes cesó and cos

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

4 ch
cesó
3 ch
cos

Look-alike desk: cesó vs cos

These two trip readers on the page rather than in the ear: cesó is [seˈso] while cos is [ˈkos]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 46713, derived from the frequency rank of both members and their visual similarity.

cesó is recorded at frequency rank #22,977, classified as averb, pronounced [seˈso]. cos is at rank #23,736, tagged as anoun, pronounced [ˈkos].

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 46713, this pair ranks #124,201 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cesó vs cos

Shared letters: cs. Private to "cesó": . Private to "cos": o.

"cesó" · 4 letters · shape CVCV  ·  "cos" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "cesó" for "cos" ever safe?
No - they are not even the same part of speech. "cesó" is a verb and "cos" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "cesó" or "cos" show up more?
"cesó" is the more common of the two: it sits at frequency rank #22,977 in our Spanish list, against #23,736 for "cos". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "cesó" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #124,201 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "cesó" and "cos" also get mixed up with nearby pairs, the highest-scored neighbour is "cos vs cuc". Nearby pair

Confusion rank #124,201 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