Which to use
“custo” and “custom” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,773
- “custo” frequency rank
- #27,822
- “custom” frequency rank
- 29595
- confusion score
Side-by-Side Comparison
| Feature | custo | custom |
|---|---|---|
| Definition | o quanto algo custa, o preço de algo | costume, hábito |
Where the eye mixes custo and custom
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between custo and custom
A purely visual mix-up. custo (/ˈkuʃ.tu/) and custom (/kʌstəm/) 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 extra letter(s) - “custo” sits inside “custom”. Our composite confusion score for this pair is 29595, derived from the frequency rank of both members and their visual similarity.
custo is recorded at frequency rank #1,773, classified as anoun, pronounced /ˈkuʃ.tu/. custom is at rank #27,822, tagged as anoun, pronounced /kʌstəm/.
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 29595, this pair ranks #38,988 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of custo vs custom
Shared letters: costu. Private to "custo": -. Private to "custom": m.
"custo" · 5 letters · shape CVCCV · "custom" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "custo" and "custom" mean the same thing in a sentence?
Which is more common, "custo" or "custom"?
Useful next steps
Eye-level mix-up between "custo" and "custom" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "custo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "custom" - compare definitions side by side with the headword page. Word entry
- This pair ranks #38,988 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "custo" and "custom" also get mixed up with nearby pairs, the highest-scored neighbour is "cisto vs custom". 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 #38,988 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.