idovsíonTell them apart

Which to use

“ido” and “íon” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#3,480
“ido” frequency rank
#44,174
“íon” frequency rank
47654
confusion score

Side-by-Side Comparison

Feature ido íon
Definition língua artificial, uma versão simplificada do esperanto; não é adotada oficialmente por nenhum país e é seguida por grupos pequenos de pessoas, especialmente na Europa espécie química eletricamente carregada, geralmente um átomo ou molécula que perdeu ou ganhou elétrons

Letter map: ido vs íon

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

3 ch
ido
3 ch
íon

Spelling & dictionary notes on ido vs íon

ido and íon are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 47654, derived from the frequency rank of both members and their visual similarity.

ido is recorded at frequency rank #3,480, classified as anoun, pronounced /ˈi.du/. 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 47654, this pair ranks #17,573 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of ido vs íon

Shared letters: o. Private to "ido": di. Private to "íon": ní.

"ido" · 3 letters · shape VCV  ·  "íon" · 3 letters · shape VVC

Frequently Asked Questions

Can "ido" and "íon" be used interchangeably?
No. They share most of their letters but differ in 3 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "ido" or "íon"?
"ido" is the more common of the two: it sits at frequency rank #3,480 in our Portuguese list, against #44,174 for "íon". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "ido" 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 #17,573 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ido" and "íon" also get mixed up with nearby pairs, the highest-scored neighbour is "ino vs íon". Nearby pair

Confusion rank #17,573 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