koi

[ˈkoj]

/[ˈkoj]/ noun

The verdict

“koi” is an uncommon Spanish word, ranked #63,938 in Spanish word frequency and used as a noun.

#63,938
frequency rank, Spanish
3
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - (Cyprinus carpio koi) Cualquiera de las subespecies de la carpa que fueron desarrolladas en Asia por selección. Son los peces ornamentales más difundidos en estanques de jardines privados y parques...

Key facts for koi
PropertyValue
Headwordkoi
LanguageSpanish
Part of speechNoun
IPA[ˈkoj]
Letters3
Frequency rank#63,938
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “koi” sits in Spanish 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). koi 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 Spanish entry for koi is 3 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as [ˈkoj]. Corpus data places it at rank #63,938 in overall Spanish word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "(Cyprinus carpio koi) Cualquiera de las subespecies de la carpa que fueron desarrolladas en Asia por selección. Son los peces ornamentales más difundidos en estanques de jardines privados y parques...".

We couldn't generate a plausible misspelling set for koi, suggesting the orthography follows predictable Spanish patterns. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct Spanish form is koi, spelled K-O-I.

Definition

  1. 1
    (Cyprinus carpio koi) Cualquiera de las subespecies de la carpa que fueron desarrolladas en Asia por selección. Son los peces ornamentales más difundidos en estanques de jardines privados y parques públicos de todo el mundo.

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 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "koi"?
"koi" is spelled K-O-I. The IPA pronunciation is [ˈkoj].
What does "koi" mean?
As a noun, "koi" means: (Cyprinus carpio koi) Cualquiera de las subespecies de la carpa que fueron desarrolladas en Asia por selección. Son los peces ornamentales más difundidos en estanques de jardines privados y parques...
How do you pronounce "koi"?
The IPA (International Phonetic Alphabet) transcription for "koi" is [ˈkoj]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "koi" come from?
"koi" is a Spanish 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 “koi”

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

  • The one correct Spanish spelling is K-O-I - every other letter order is a misspelling in standard orthography.
  • Say it as [ˈkoj] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more Spanish words and confusable pairs in the same reference. Spanish 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