doi vs dor, What's the Difference?

Which to use

“doi” is a num and “dor” is a noun - they look or sound alike but fill different roles in a sentence.

#13,272
“doi” frequency rank: #934
“dor” frequency rank: 14206
confusion score

Side-by-Side Comparison

Feature	doi	dor
Definition	dois; representado pelo algarismo hindu-arábico 2	sensação desagradável:

Letter map: doi vs dor

Shared letters muted; letters that set doi and dor apart highlighted. Shared run: 2.

3 ch

doi

3 ch

dor

Grammar separator: doi vs dor

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: doi is anum and doranoun. On the page they differ by a single letter - i in “doi” becomes r in “dor”. Our composite confusion score for this pair is 14206, derived from the frequency rank of both members and their visual similarity.

doi is recorded at frequency rank #13,272, classified as anum, pronounced /doj/. dor is at rank #934, tagged as anoun.

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 14206, this pair ranks #57,961 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of doi vs dor

Shared letters: do. Private to "doi": i. Private to "dor": r.

"doi" · 3 letters · shape CVV · "dor" · 3 letters · shape CVC

Frequently Asked Questions

Can "doi" and "dor" be used interchangeably?

No - they are not even the same part of speech. "doi" is a num and "dor" a noun, so a sentence built for one is usually ungrammatical with the other.

In ordinary Portuguese text, does "doi" or "dor" show up more?

"dor" is the more common of the two: it sits at frequency rank #934 in our Portuguese list, against #13,272 for "doi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Done with this confusable. These links stay specific to "doi" and "dor".

Full dictionary entry for "doi" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "dor" - compare definitions side by side with the headword page. Word entry
This pair ranks #57,961 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"doi" and "dor" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs doi". Nearby pair

Confusion rank #57,961 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.