coavscosWhich spelling fits?

Which to use

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

#35,945
“coa” frequency rank
#23,736
“cos” frequency rank
59681
confusion score

Side-by-Side Comparison

Feature coa cos
Definition Instrumento de labranza, similar en su forma a un palo. Cuerpo.

Where the eye mixes coa and cos

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

3 ch
coa
3 ch
cos

Look-alike desk: coa vs cos

A purely visual mix-up. coa ([ˈkoa]) and cos ([ˈkos]) 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 a single letter - a in “coa” becomes s in “cos”. Our composite confusion score for this pair is 59681, derived from the frequency rank of both members and their visual similarity.

coa is recorded at frequency rank #35,945, classified as anoun, pronounced [ˈkoa]. 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 59681, this pair ranks #61,745 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of coa vs cos

Shared letters: co. Private to "coa": a. Private to "cos": s.

"coa" · 3 letters · shape CVV  ·  "cos" · 3 letters · shape CVC

Frequently Asked Questions

Can "coa" and "cos" be used interchangeably?
No. They are said differently ([ˈkoa] versus [ˈkos]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "coa" vs "cos" - which ranks higher?
"cos" is the more common of the two: it sits at frequency rank #23,736 in our Spanish list, against #35,945 for "coa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "coa" 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 #61,745 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "coa" and "cos" also get mixed up with nearby pairs, the highest-scored neighbour is "coa vs cuc". Nearby pair

Confusion rank #61,745 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