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fallo

Spanish, noun

fallo is spelled F-A-L-L-O (5 letters) and appears 24 times per million words in written Spanish, the 3,394th most frequent Spanish word form (wordfreq, 2021 data). Fallo is a Spanish masculine noun meaning “mistake” (English Wiktionary, September 2026). It is also a first-person singular present indicative of fallar. With an accent, falló is a different word: “third-person singular preterite indicative of fallar”. The Spanish Wiktionary (Wikcionario) defines it as “Equivocación, error”.

What does fallo mean in English?

noun

  1. 1

    masculinemistake

  2. 2

    masculinefailure

  3. 3

    masculineverdict, decision

  4. 4

    masculineruling

  5. 5

    masculinebug, hole (security vulnerability in software which can be taken advantage of by an exploit)

verb

  1. 1

    first-person singular present indicative of fallar

verb

  1. 1

    first-person singular present indicative of fallir

verb

as falló
  1. 1

    third-person singular preterite indicative of fallar

  2. 2

    third-person singular preterite indicative of fallir

Source: English Wiktionary, Spanish section, dump of September 2, 2026 (CC BY-SA 4.0).

How Spanish dictionaries define it

adjective: 1. En algunos juegos de naipes, falto de algún palo. 2. Débil, sin energía.

noun: 1. Equivocación, error. 2. Falta de un palo en algunos juego de cartas.

noun: 1. Acto procesal proveniente de un tribunal, mediante el cual resuelve las peticiones de las partes, o autoriza u ordena el cumplimiento de determinadas medidas. 2. Decisión tomada por alguien capacitado para hacerlo.

The definition in the Spanish Wiktionary (Wikcionario), in Spanish.

Source: Spanish Wiktionary (Wikcionario), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

Forms of fallo

  • fallos plural
  • falla feminine
  • fallas feminine plural

Source: English Wiktionary and Spanish Wiktionary (Wikcionario) (dumps of September 2, 2026 and September 1, 2026).

English words that translate to fallo

Source: the translation tables of the English Wiktionary, dump of September 2, 2026.

How common is fallo in Spanish?

fallo appears 24 times per million words in written Spanish.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

What to look up after fallo