coopervscooperaTell them apart

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

Which to use

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

#10,642
“cooper” frequency rank
#42,363
“coopera” frequency rank
53005
confusion score

Side-by-Side Comparison

Feature cooper coopera
Definition Tonelero, cubero. Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de cooperar.

Where the eye mixes cooper and coopera

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

6 ch
cooper
7 ch
coopera

Look-alike desk: cooper vs coopera

These two trip readers on the page rather than in the ear: cooper is /ˈkuː.pə(ɹ)/ while coopera is [kooˈpeɾa]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “cooper” sits inside “coopera”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 53005, derived from the frequency rank of both members and their visual similarity.

cooper is recorded at frequency rank #10,642, classified as anoun, pronounced /ˈkuː.pə(ɹ)/. coopera is at rank #42,363, tagged as averb, pronounced [kooˈpeɾa].

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 53005, this pair ranks #90,012 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cooper vs coopera

Shared letters: ceopr. Private to "cooper": -. Private to "coopera": a.

"cooper" · 6 letters · shape CVVCVC  ·  "coopera" · 7 letters · shape CVVCVCV

Known mistypes of this pair

  • cooperccooper · cooepr · cooperr · coopper · coopre · coper · copoer · ocoper
  • cooperaccoopera · cooepra · coopear · cooppera · cooprea · copera · copoera · ocopera

Frequently Asked Questions

Do "cooper" and "coopera" mean the same thing in a sentence?
No - they are not even the same part of speech. "cooper" is a noun and "coopera" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cooper" or "coopera"?
"cooper" is the more common of the two: it sits at frequency rank #10,642 in our Spanish list, against #42,363 for "coopera". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "cooper" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coopera" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #90,012 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "cooper" and "coopera" also get mixed up with nearby pairs, the highest-scored neighbour is "coopera vs cooperan". 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 #90,012 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