ichvsíonWhat's the difference?

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

Which to use

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

#32,637
“ich” frequency rank
#44,174
“íon” frequency rank
76811
confusion score

Side-by-Side Comparison

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

Letter map: ich vs íon

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

3 ch
ich
3 ch
íon

Role in the sentence - ich and íon

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ich is apronoun and íonanoun. On the page they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 76811, derived from the frequency rank of both members and their visual similarity.

ich is recorded at frequency rank #32,637, classified as apron, pronounced /ˈɪç/. 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 76811, this pair ranks #2,017 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of ich vs íon

Shared letters: none. Private to "ich": chi. Private to "íon": noí.

"ich" · 3 letters · shape VCC  ·  "íon" · 3 letters · shape VVC

Frequently Asked Questions

Do "ich" and "íon" mean the same thing in a sentence?
No - they are not even the same part of speech. "ich" is a pronoun and "íon" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ich" vs "íon" - which ranks higher?
"ich" is the more common of the two: it sits at frequency rank #32,637 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.

Useful next steps

You've compared "ich" and "íon". Here's where to go from here.

  • Full dictionary entry for "ich" 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 #2,017 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ich" and "íon" also get mixed up with nearby pairs, the highest-scored neighbour is "ino vs íon". Nearby pair

Confusion rank #2,017 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