doivsdueWhich spelling fits?

Quick tell: doi is a num, due is an adjective, so they fill different roles in a sentence.

Which to use

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

#13,272
“doi” frequency rank
#24,954
“due” frequency rank
38226
confusion score

Side-by-Side Comparison

Feature doi due
Definition dois; representado pelo algarismo hindu-arábico 2 devido

Where the eye mixes doi and due

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
doi
3 ch
due

Look-alike desk: doi vs due

These two trip readers on the page rather than in the ear: doi is /doj/ while due is /dju/. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 38226, 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/. due is at rank #24,954, tagged as anadj, pronounced /dju/.

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 38226, this pair ranks #28,245 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of doi vs due

Shared letters: d. Private to "doi": io. Private to "due": eu.

"doi" · 3 letters · shape CVV  ·  "due" · 3 letters · shape CVV

Frequently Asked Questions

Do "doi" and "due" mean the same thing in a sentence?
No - they are not even the same part of speech. "doi" is a num and "due" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "doi" or "due"?
"doi" is the more common of the two: it sits at frequency rank #13,272 in our Portuguese list, against #24,954 for "due". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "doi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "due" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #28,245 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "doi" and "due" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs due". Nearby pair

Confusion rank #28,245 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