icivsidoWhich spelling fits?

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

Which to use

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

#45,880
“ici” frequency rank
#3,480
“ido” frequency rank
49360
confusion score

Side-by-Side Comparison

Feature ici ido
Definition aqui 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 ici and ido

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

3 ch
ici
3 ch
ido

Visual trap between ici and ido

These two trip readers on the page rather than in the ear: ici is \i.si\ 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 (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 49360, derived from the frequency rank of both members and their visual similarity.

ici is recorded at frequency rank #45,880, classified as anadv, pronounced \i.si\. 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 49360, this pair ranks #15,667 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of ici vs ido

Shared letters: i. Private to "ici": c. Private to "ido": do.

"ici" · 3 letters · shape VCV  ·  "ido" · 3 letters · shape VCV

Frequently Asked Questions

Do "ici" and "ido" mean the same thing in a sentence?
No - they are not even the same part of speech. "ici" is an adverb and "ido" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "ici" 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 #45,880 for "ici". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "ici" and "ido" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "ici" 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 #15,667 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ici" and "ido" also get mixed up with nearby pairs, the highest-scored neighbour is "ici vs ino". Nearby pair

Confusion rank #15,667 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