dois vs domo, What's the Difference?

Which to use

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

#109
“dois” frequency rank: #39,110
“domo” frequency rank: 39219
confusion score

Side-by-Side Comparison

Feature	dois	domo
Definition	número equivalente a um mais um; cardinalidade de um conjunto que contenha um elemento e um outro elemento distinto; representado pelo símbolo 2 (algarismos indo-arábicos) ou II (algarismos romanos); seu feminino é duas	estrutura arquitetónica de formato hemisférico ou esferoide, que serve geralmente como cobertura de uma construção

Where the spellings diverge

Shared letters are muted; the letters that actually set dois and domo apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch

dois

4 ch

domo

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: dois is /ˈdojʃ/ while domo is /ˈdo.mʊ/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (num vs noun), which is usually the fastest check. Our composite confusion score for this pair is 39219, derived from the frequency rank of both members and their visual similarity.

dois is recorded at frequency rank #109, classified as anum, pronounced /ˈdojʃ/. domo is at rank #39,110, tagged as anoun, pronounced /ˈdo.mʊ/.

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 39219, this pair ranks #27,082 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of dois vs domo

Shared letters: do. Private to "dois": is. Private to "domo": m.

"dois" · 4 letters · shape CVVC · "domo" · 4 letters · shape CVCV

Known mistypes of this pair

dois ← ddois · dios · doiss · dosi · odis
domo ← ddomo · dmoo · dommo · doom · odmo

Frequency comparison

dois#109

domo#39,110

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "dois" and "domo" be used interchangeably?

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

Which is more common, "dois" or "domo"?

"dois" is the more common of the two: it sits at frequency rank #109 in our Portuguese list, against #39,110 for "domo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering dois vs domo

The fastest way to pick the right one every time.

Check the role first: if you need a num, it's “dois”; for a noun, it's “domo”.
See each word in full, definition, IPA, etymology and its other confusables. Full “dois” entry
Browse more pairs most likely to be confused. Most confusable