díavsdosConfusable pair

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

Which to use

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

#76
“día” frequency rank
#57
“dos” frequency rank
133
confusion score

Side-by-Side Comparison

Feature día dos
Definition Tiempo que tarda la Tierra en dar una vuelta alrededor de su eje, equivalente a 24 horas. Que consta de uno más que la unidad (1+1).

Where the eye mixes día and dos

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

3 ch
día
3 ch
dos

Why the eye confuses día with dos

These two trip readers on the page rather than in the ear: día is [ˈd̪ia] while dos is [ˈd̪os]. 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 (noun vs num), which is usually the fastest check. Our composite confusion score for this pair is 133, derived from the frequency rank of both members and their visual similarity.

día is recorded at frequency rank #76, classified as anoun, pronounced [ˈd̪ia]. dos is at rank #57, tagged as anum, pronounced [ˈd̪os].

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 133, this pair ranks #323,748 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of día vs dos

Shared letters: d. Private to "día": . Private to "dos": os.

"día" · 3 letters · shape CVV  ·  "dos" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "día" for "dos" ever safe?
No - they are not even the same part of speech. "día" is a noun and "dos" a num, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "día" or "dos" show up more?
"dos" is the more common of the two: it sits at frequency rank #57 in our Spanish list, against #76 for "día". 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 "día" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #323,748 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "día" and "dos" also get mixed up with nearby pairs, the highest-scored neighbour is "dont vs dos". Nearby pair

Confusion rank #323,748 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list