flaco

Asturian

Adjective

flaco

1. neuter of flacu

Chavacano

Etymology

From Spanish flaco.

Adjective

flaco

1. thin

Portuguese

Etymology

Borrowed from Spanish flaco (“skinny”). Doublet of fraco.

Pronunciation

• IPA^(key): /ˈfla.ku/

Adjective

flaco (feminine flaca, masculine plural flacos, feminine plural flacas)

1. (Rio Grande do Sul, especially of an animal) feeble; frail

Further reading

• “flaco”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2025

Spanish

Etymology

From Latin flaccus, perhaps an early borrowing.

Pronunciation

• IPA^(key): /ˈflako/ [ˈfla.ko]
• Rhymes: -ako
• Syllabification: fla‧co

Adjective

flaco (feminine flaca, masculine plural flacos, feminine plural flacas, superlative flaquísimo)

1. skinny, thin, slim

   Synonyms: delgado, fleje

   Antonym: gordo

Derived terms

• a perro flaco, todo son pulgas
• punto flaco

Descendants

• → Papiamentu: flaku

Noun

flaco m (plural flacos, feminine flaca, feminine plural flacas)

1. a thin man
2. (colloquial, Rioplatense, Colombia) used to address someone without using their name
3. (colloquial, Rioplatense) a young man
4. (colloquial, Peru) boyfriend

Noun

flaco m (plural flacos)

1. (informal, euphemistic) urine, urination, number one

Derived terms

• flaco favor
• flacucho
• vacas flacas

Related terms

• flácido
• flacura
• flaquear
• flaqueza

Further reading

• “flaco”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025
• Coromines, Joan; Pascual, José Antonio (1984), “flaco”, in Diccionario crítico etimológico castellano e hispánico [Critical Castilian and Hispanic etymological dictionary]‎ (in Spanish), volume II (Ce–F), Madrid: Gredos, →ISBN, page 906
• Walther von Wartburg (1928–2002), “flaccus”, in Französisches Etymologisches Wörterbuch, volume 3: D–F, page 593