icvsíonWhat's the difference?

Quick tell: ic is a pronoun, íon is a noun, so they fill different roles in a sentence.

Which to use

“ic” is a pronoun and “íon” is a noun - they look or sound alike but fill different roles in a sentence.

#25,339
“ic” frequency rank
#44,174
“íon” frequency rank
69513
confusion score

Side-by-Side Comparison

Feature ic íon
Definition eu, pronome pessoal do caso reto da primeira pessoa do singular espécie química eletricamente carregada, geralmente um átomo ou molécula que perdeu ou ganhou elétrons

Letter map: ic vs íon

Shared letters muted; letters that set ic and íon apart highlighted. No shared letter run.

2 ch
ic
3 ch
íon

Role in the sentence - ic and íon

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ic is apronoun and íonanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 69513, derived from the frequency rank of both members and their visual similarity.

ic is recorded at frequency rank #25,339, classified as apron, pronounced /iʧ/. íon is at rank #44,174, 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 69513, this pair ranks #3,927 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of ic vs íon

Shared letters: none. Private to "ic": ci. Private to "íon": noí.

"ic" · 2 letters · shape VC  ·  "íon" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "ic" for "íon" ever safe?
No - they are not even the same part of speech. "ic" is a pronoun and "íon" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ic" vs "íon" - which ranks higher?
"ic" is the more common of the two: it sits at frequency rank #25,339 in our Portuguese list, against #44,174 for "íon". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "ic" vs "íon" is on the table, pick a follow-up below.

  • Full dictionary entry for "ic" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "íon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #3,927 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ic" and "íon" also get mixed up with nearby pairs, the highest-scored neighbour is "ino vs íon". Nearby pair

Confusion rank #3,927 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