intovsiodoWhich spelling fits?

Quick tell: into is a preposition, iodo is a noun, so they fill different roles in a sentence.

Which to use

“into” is a preposition and “iodo” is a noun - they look or sound alike but fill different roles in a sentence.

#10,024
“into” frequency rank
#27,142
“iodo” frequency rank
37166
confusion score

Side-by-Side Comparison

Feature into iodo
Definition em 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 eye mixes into and iodo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
into
4 ch
iodo

Why the eye confuses into with iodo

These two trip readers on the page rather than in the ear: into is /ˈɪn.tuː/, X-SAMPA: /"Intu:/ while iodo is /ˈjo.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 (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 37166, derived from the frequency rank of both members and their visual similarity.

into is recorded at frequency rank #10,024, classified as aprep, pronounced /ˈɪn.tuː/, X-SAMPA: /"Intu:/. 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 37166, this pair ranks #29,514 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of into vs iodo

Shared letters: io. Private to "into": nt. Private to "iodo": d.

"into" · 4 letters · shape VCCV  ·  "iodo" · 4 letters · shape VVCV

Known mistypes of this pair

  • intoinnto · inot · intto · itno · nito
  • iodoidoo · ioddo · iood · oido

Frequently Asked Questions

Do "into" and "iodo" mean the same thing in a sentence?
No - they are not even the same part of speech. "into" is a preposition and "iodo" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "into" or "iodo" show up more?
"into" is the more common of the two: it sits at frequency rank #10,024 in our Portuguese list, against #27,142 for "iodo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "into" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iodo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #29,514 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "into" and "iodo" also get mixed up with nearby pairs, the highest-scored neighbour is "ino vs iodo". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #29,514 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