dayvsdeConfusable pair

Quick tell: day is a noun, de is a preposition, so they fill different roles in a sentence.

Which to use

“day” is a noun and “de” is a preposition - they look or sound alike but fill different roles in a sentence.

#2,512
“day” frequency rank
#1
“de” frequency rank
2513
confusion score

Side-by-Side Comparison

Feature day de
Definition dia (período de 24 horas) estabelece uma ligação entre duas palavras, (geralmente uma relação de subordinação), podendo expressar

Where the eye mixes day and de

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

3 ch
day
2 ch
de

Visual trap between day and de

These two trip readers on the page rather than in the ear: day is /deɪ/ while de is /ʤɪ/; /ˈde/ (em finais de frases interrogativas, exemplo: estamos falando de?). Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 2513, derived from the frequency rank of both members and their visual similarity.

day is recorded at frequency rank #2,512, classified as anoun, pronounced /deɪ/. de is at rank #1, tagged as aprep, pronounced /ʤɪ/; /ˈde/ (em finais de frases interrogativas, exemplo: estamos falando de?).

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 2513, this pair ranks #72,854 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of day vs de

Shared letters: d. Private to "day": ay. Private to "de": e.

"day" · 3 letters · shape CVV  ·  "de" · 2 letters · shape CV

Frequently Asked Questions

Do "day" and "de" mean the same thing in a sentence?
No - they are not even the same part of speech. "day" is a noun and "de" a preposition, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "day" vs "de" - which ranks higher?
"de" is the more common of the two: it sits at frequency rank #1 in our Portuguese list, against #2,512 for "day". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "day" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "de" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #72,854 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "day" and "de" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs day". Nearby pair

Confusion rank #72,854 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