chi

pron

The verdict

“chi” is a moderately-common Portuguese word, ranked #10,328 in Portuguese word frequency and used as a pronoun.

#10,328
frequency rank, Portuguese
3
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - quem

Visual similarity to commonly confused words

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

chi vs co
33% similar
chi vs cu
33% similar
chi vs ci
67% similar

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

Key facts for chi
PropertyValue
Headwordchi
LanguagePortuguese
Part of speechPronoun
Letters3
Frequency rank#10,328
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “chi” 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). chi 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 chi is 3 letters long, classified as a pronoun. Corpus data places it at rank #10,328 in overall Portuguese word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "quem".

The misspelling generator found no plausible variants for chi, a straightforward case of a spelling with little room for common typos. It also participates in 20 confusable-pair relationships, "co", "cu", "ci", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

No documented word history exists for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Portuguese form is chi, spelled C-H-I.

Definition

  1. 1
    quem

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 "chi"?
"chi" is spelled C-H-I.
What does "chi" mean?
As a pronoun, "chi" means: quem
What words are commonly confused with "chi"?
"chi" is commonly confused with "co", "cu", "ci". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "chi" come from?
"chi" is a Portuguese word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 “chi”

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

  • The one correct Portuguese spelling is C-H-I - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “co” - see the side-by-side comparison. chi vs co
  • 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