Which to use
“io” is an adverb and “iodo” is a noun - they look or sound alike but fill different roles in a sentence.
- #18,900
- “io” frequency rank
- #27,142
- “iodo” frequency rank
- 46042
- confusion score
Side-by-Side Comparison
| Feature | io | iodo |
|---|---|---|
| Definition | sempre | elemento químico de símbolo I, possui o número atômico 53 e massa atômica relativa 126,904 u; é um não-metal, halogênio, de cor negra; apesar de abundante, não é encontrado livre na natureza, ocorrendo principalmente na forma de iodetos e iodatos em rochas, solos, água do mar e depósitos de sal; é utilizado principalmente na medicina, como desinfetante; é um elemento essencial para o corpo humano; sua falta provoca o hipotiroidismo causando o bócio e a mixedema |
Where the spellings diverge
Shared letters are muted; the letters that actually set io and iodo apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
io and iodo form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 2 extra letter(s) - “io” sits inside “iodo” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 46042, derived from the frequency rank of both members and their visual similarity.
io is recorded at frequency rank #18,900, classified as anadv, pronounced /ˈi.o/, /ˈi.ɔ/. iodo is at rank #27,142, tagged as anoun, pronounced /ˈjo.du/.
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 46042, this pair ranks #19,324 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "io" and "iodo" be used interchangeably?
Remembering io vs iodo
The fastest way to pick the right one every time.
- Check the role first: if you need an adverb, it's “io”; for a noun, it's “iodo”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “io” entry
- Browse more pairs most likely to be confused. Most confusable