illvsinoConfusable pair

Quick tell: ill is a adjective, ino is a noun, so they fill different roles in a sentence.

Which to use

“ill” is an adjective and “ino” is a noun - they look or sound alike but fill different roles in a sentence.

#44,899
“ill” frequency rank
#49,532
“ino” frequency rank
94431
confusion score

Side-by-Side Comparison

Feature ill ino
Definition doente ser do sexo feminino; fêmea

Letter map: ill vs ino

Shared letters muted; letters that set ill and ino apart highlighted. Shared run: 1. ill (VCC) and ino (VCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
ill
3 ch
ino

Grammar separator: ill vs ino

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ill is anadjective and inoanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 94431, derived from the frequency rank of both members and their visual similarity.

ill is recorded at frequency rank #44,899, classified as anadj, pronounced /ɪl/. ino is at rank #49,532, 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 94431, this pair ranks #96 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of ill vs ino

Shared letters: i. Private to "ill": l. Private to "ino": no.

"ill" · 3 letters · shape VCC  ·  "ino" · 3 letters · shape VCV

Frequently Asked Questions

Can "ill" and "ino" be used interchangeably?
No - they are not even the same part of speech. "ill" is an adjective and "ino" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "ill" or "ino" show up more?
"ill" is the more common of the two: it sits at frequency rank #44,899 in our Portuguese list, against #49,532 for "ino". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "ill" and "ino".

  • Full dictionary entry for "ill" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ino" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #96 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ill" and "ino" also get mixed up with nearby pairs, the highest-scored neighbour is "ino vs ioiô". Nearby pair

Confusion rank #96 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