Which to use
“def” is an adjective and “dies” is a noun - they look or sound alike but fill different roles in a sentence.
- #32,132
- “def” frequency rank
- #34,236
- “dies” frequency rank
- 66368
- confusion score
Side-by-Side Comparison
| Feature | def | dies |
|---|---|---|
| Definition | algo muito bom | dia; o dia romano era o período compreendido entre o nascer do sol e o ocaso e divido em 12 horas; nessa acepção (de prazo e no singular) assume o gênero feminino |
Letter map: def vs dies
Shared letters muted; letters that set def and dies apart highlighted. Shared run: 2. def runs 3 letters (CVC) against dies's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: def vs dies
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: def is anadjective and diesanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 66368, derived from the frequency rank of both members and their visual similarity.
def is recorded at frequency rank #32,132, classified as anadj, pronounced /dɛf/. dies is at rank #34,236, tagged as anoun.
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 66368, this pair ranks #5,021 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of def vs dies
Shared letters: de. Private to "def": f. Private to "dies": is.
"def" · 3 letters · shape CVC · "dies" · 4 letters · shape CVVC
Known mistypes of this pair
- dies ← ddies · deis · diess · ides
Frequently Asked Questions
Is swapping "def" for "dies" ever safe?
Which is more common, "def" or "dies"?
Useful next steps
Done with this confusable. These links stay specific to "def" and "dies".
- Full dictionary entry for "def" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dies" - compare definitions side by side with the headword page. Word entry
- This pair ranks #5,021 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "def" and "dies" also get mixed up with nearby pairs, the highest-scored neighbour is "dies vs dink". 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 #5,021 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.