diskvsdoisTell them apart

Quick tell: disk is a noun, dois is a num, so they fill different roles in a sentence.

Which to use

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

#25,980
“disk” frequency rank
#109
“dois” frequency rank
26089
confusion score

Side-by-Side Comparison

Feature disk dois
Definition disque 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

Letter map: disk vs dois

Shared letters muted; letters that set disk and dois apart highlighted. Shared run: 3.

4 ch
disk
4 ch
dois

Grammar separator: disk vs dois

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: disk is anoun and doisanum. On the page they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 26089, derived from the frequency rank of both members and their visual similarity.

disk is recorded at frequency rank #25,980, classified as anoun. dois is at rank #109, tagged as anum, pronounced /ˈdojʃ/.

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 26089, this pair ranks #43,126 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of disk vs dois

Shared letters: dis. Private to "disk": k. Private to "dois": o.

"disk" · 4 letters · shape CVCC  ·  "dois" · 4 letters · shape CVVC

Known mistypes of this pair

  • diskddisk · diks · diskk · dissk · dsik · idsk
  • doisddois · dios · doiss · dosi · odis

Frequently Asked Questions

Do "disk" and "dois" mean the same thing in a sentence?
No - they are not even the same part of speech. "disk" is a noun and "dois" a num, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "disk" vs "dois" - which ranks higher?
"dois" is the more common of the two: it sits at frequency rank #109 in our Portuguese list, against #25,980 for "disk". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Done with this confusable. These links stay specific to "disk" and "dois".

  • Full dictionary entry for "disk" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dois" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #43,126 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "disk" and "dois" also get mixed up with nearby pairs, the highest-scored neighbour is "dink vs disk". 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 #43,126 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list