íon

noun

The verdict

“íon” is a moderately-common Portuguese word, ranked #44,174 in Portuguese word frequency and used as a noun.

#44,174
frequency rank, Portuguese
3
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - espécie química eletricamente carregada, geralmente um átomo ou molécula que perdeu ou ganhou elétrons

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

íon vs ir
0% similar
íon vs is
0% similar
íon vs it
0% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for íon
PropertyValue
Headwordíon
LanguagePortuguese
Part of speechNoun
Letters3
Frequency rank#44,174
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “íon” sits in Portuguese frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). íon lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The Portuguese entry for íon is 3 letters long, classified as a noun. Corpus data places it at rank #44,174 in overall Portuguese word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "espécie química eletricamente carregada, geralmente um átomo ou molécula que perdeu ou ganhou elétrons".

The misspelling generator found no plausible variants for íon, and the word's spelling is regular enough that our generator found nothing worth flagging. It also participates in 20 confusable-pair relationships, "ir", "is", "it", and more, where similar look or sound leads writers to substitute one word for another in context.

This headword's origin isn't recorded in our source data, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct Portuguese form is íon, spelled Í-O-N.

Definition

  1. 1
    espécie química eletricamente carregada, geralmente um átomo ou molécula que perdeu ou ganhou elétrons

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 Portuguese corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "íon"?
"íon" is spelled Í-O-N.
What does "íon" mean?
As a noun, "íon" means: espécie química eletricamente carregada, geralmente um átomo ou molécula que perdeu ou ganhou elétrons
What words are commonly confused with "íon"?
"íon" is commonly confused with "ir", "is", "it". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "íon" come from?
"íon" is a Portuguese word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “íon”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct Portuguese spelling is Í-O-N - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “ir” - see the side-by-side comparison. íon vs ir
  • Browse more Portuguese words and confusable pairs in the same reference. Portuguese words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list