iamvsidoConfusable pair

Quick tell: iam is a verb, ido is a noun, so they fill different roles in a sentence.

Which to use

“iam” is a verb and “ido” is a noun - they look or sound alike but fill different roles in a sentence.

#4,823
“iam” frequency rank
#3,480
“ido” frequency rank
8303
confusion score

Side-by-Side Comparison

Feature iam ido
Definition terceira pessoa do plural do pretérito imperfeito do indicativo do verbo ir 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

Where the eye mixes iam and ido

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
iam
3 ch
ido

Why the eye confuses iam with ido

These two trip readers on the page rather than in the ear: iam is /ˈi.am/, /ˈi.ɑm/ while ido is /ˈi.du/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 8303, derived from the frequency rank of both members and their visual similarity.

iam is recorded at frequency rank #4,823, classified as averb, pronounced /ˈi.am/, /ˈi.ɑm/. ido is at rank #3,480, tagged as anoun, pronounced /ˈi.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 8303, this pair ranks #65,515 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of iam vs ido

Shared letters: i. Private to "iam": am. Private to "ido": do.

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

Frequently Asked Questions

Can "iam" and "ido" be used interchangeably?
No - they are not even the same part of speech. "iam" is a verb and "ido" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "iam" or "ido" show up more?
"ido" is the more common of the two: it sits at frequency rank #3,480 in our Portuguese list, against #4,823 for "iam". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "iam" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ido" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #65,515 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "iam" and "ido" also get mixed up with nearby pairs, the highest-scored neighbour is "iam vs ino". Nearby pair

Confusion rank #65,515 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