UCI

[ˈusi]

/[ˈusi]/ abbrev

The verdict

“UCI” is a moderately-common Spanish word, ranked #24,687 in Spanish word frequency and used as an abbreviation.

#24,687
frequency rank, Spanish
3
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Sigla de Unidad de Cuidados Intensivos.

Visual similarity to commonly confused words

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

UCI vs un
0% similar
UCI vs us
0% similar
UCI vs up
0% similar

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

Key facts for UCI
PropertyValue
HeadwordUCI
LanguageSpanish
Part of speechAbbreviation
IPA[ˈusi]
Letters3
Frequency rank#24,687
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “UCI” 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). UCI 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 UCI is 3 letters long, classified as an abbreviation, and transcribed in the International Phonetic Alphabet as [ˈusi]. Corpus data places it at rank #24,687 in overall Spanish word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Sigla de Unidad de Cuidados Intensivos.".

No misspelling variants are generated for UCI in our index, since its letter pattern doesn't lend itself to common typo substitutions. It also participates in 20 confusable-pair relationships, "un", "us", "up", and more, where similar look or sound leads writers to substitute one word for another in context.

This entry's etymology isn't recorded, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct Spanish form is UCI, spelled U-C-I.

Definition

  1. 1
    Sigla de Unidad de Cuidados Intensivos.

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 "UCI"?
"UCI" is spelled U-C-I. The IPA pronunciation is [ˈusi].
What does "UCI" mean?
As an abbreviation, "UCI" means: Sigla de Unidad de Cuidados Intensivos.
What words are commonly confused with "UCI"?
"UCI" is commonly confused with "un", "us", "up". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "UCI"?
The IPA (International Phonetic Alphabet) transcription for "UCI" is [ˈusi]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "UCI" come from?
"UCI" is a Spanish word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 “UCI”

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

  • The one correct Spanish spelling is U-C-I - every other letter order is a misspelling in standard orthography.
  • Say it as [ˈusi] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “un” - see the side-by-side comparison. UCI vs un
  • 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