cor vs cost, What's the Difference?

Which to use

“cor” and “cost” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#1,065
“cor” frequency rank: #22,928
“cost” frequency rank: 23993
confusion score

Side-by-Side Comparison

Feature	cor	cost
Definition	coração	custo

Where the eye mixes cor and cost

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

3 ch

cor

4 ch

cost

Visual trap between cor and cost

A purely visual mix-up. cor (/ˈkɔɾ/) 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 23993, derived from the frequency rank of both members and their visual similarity.

cor is recorded at frequency rank #1,065, classified as anoun, pronounced /ˈkɔɾ/. cost is at rank #22,928, 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 23993, this pair ranks #45,728 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cor vs cost

Shared letters: co. Private to "cor": r. Private to "cost": st.

"cor" · 3 letters · shape CVC · "cost" · 4 letters · shape CVCC

Known mistypes of this pair

cost ← ccost · cosst · costt · cots · csot · ocst

Frequently Asked Questions

Is swapping "cor" for "cost" ever safe?

No. They are said differently (/ˈkɔɾ/ versus /ˈkɔst/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Frequency check: "cor" vs "cost" - which ranks higher?

"cor" is the more common of the two: it sits at frequency rank #1,065 in our Portuguese list, against #22,928 for "cost". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "cor" 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 #45,728 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"cor" and "cost" also get mixed up with nearby pairs, the highest-scored neighbour is "copta vs cost". 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 #45,728 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.