ua

[ˈ(ɣ̞)w̝a]

/[ˈ(ɣ̞)w̝a]/ noun

The verdict

“ua” is a moderately-common Spanish word, ranked #18,412 in Spanish word frequency and used as a noun.

#18,412
frequency rank, Spanish
2
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Sigla de unidad astronómica, de longitud igual a 149 597 870 700 metros. Equivale aproximadamente a la distancia media entre la Tierra y el Sol.

Visual similarity to commonly confused words

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

ua vs un
50% similar
ua vs us
50% similar
ua vs up
50% similar

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

Key facts for ua
PropertyValue
Headwordua
LanguageSpanish
Part of speechNoun
IPA[ˈ(ɣ̞)w̝a]
Letters2
Frequency rank#18,412
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “ua” 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). ua 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 ua is 2 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as [ˈ(ɣ̞)w̝a]. Corpus data places it at rank #18,412 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 astronómica, de longitud igual a 149 597 870 700 metros. Equivale aproximadamente a la distancia media entre la Tierra y el Sol.".

No misspelling variants are generated for ua in our index, since its letter sequence doesn't invite the usual edit-distance slips. It also participates in 20 confusable-pair relationships, "un", "us", "up", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

No borrowing history is documented for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct Spanish form is ua, spelled U-A.

Definition

  1. 1
    Sigla de unidad astronómica, de longitud igual a 149 597 870 700 metros. Equivale aproximadamente a la distancia media entre la Tierra y el Sol.

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

Frequently Asked Questions

How do you spell "ua"?
"ua" is spelled U-A. The IPA pronunciation is [ˈ(ɣ̞)w̝a].
What does "ua" mean?
As a noun, "ua" means: Sigla de unidad astronómica, de longitud igual a 149 597 870 700 metros. Equivale aproximadamente a la distancia media entre la Tierra y el Sol.
What words are commonly confused with "ua"?
"ua" 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 "ua"?
The IPA (International Phonetic Alphabet) transcription for "ua" is [ˈ(ɣ̞)w̝a]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "ua" come from?
"ua" 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 “ua”

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

  • The one correct Spanish spelling is U-A - every other letter order is a misspelling in standard orthography.
  • Say it as [ˈ(ɣ̞)w̝a] (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. ua 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