Which to use
“coo” and “cost” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #47,681
- “coo” frequency rank
- #21,956
- “cost” frequency rank
- 69637
- confusion score
Side-by-Side Comparison
| Feature | coo | cost |
|---|---|---|
| Definition | (Strix rufipes) Ave rapaz nocturna estrigiforme con rayas alternadas entre gris y blanco, presente en Chile y Argentina. | Costo. |
Where the eye mixes coo and cost
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. coo runs 3 letters (CVV) against cost's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: coo vs cost
A purely visual mix-up. coo ([ˈko]) and cost ([ˈkɔst]) 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 letter(s) in length. Our composite confusion score for this pair is 69637, derived from the frequency rank of both members and their visual similarity.
coo is recorded at frequency rank #47,681, classified as anoun, pronounced [ˈko]. cost is at rank #21,956, tagged as anoun, pronounced [ˈkɔst].
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 69637, this pair ranks #31,544 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of coo vs cost
Shared letters: co. Private to "coo": -. Private to "cost": st.
"coo" · 3 letters · shape CVV · "cost" · 4 letters · shape CVCC
Known mistypes of this pair
- cost ← ccost · cosst · costt · cots · csot · ocst
Frequently Asked Questions
Can "coo" and "cost" be used interchangeably?
In ordinary Spanish text, does "coo" or "cost" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "coo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cost" - compare definitions side by side with the headword page. Word entry
- This pair ranks #31,544 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "coo" and "cost" also get mixed up with nearby pairs, the highest-scored neighbour is "coo vs cuc". 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 #31,544 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.