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ENGLISH · A WORD WITH POSSIBILITIES

loco.

A direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower.

4 characters2 syllables approx.English language

Meaning & usage

adv/ˈləʊ.kəʊ/UK
  1. A direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower.

    not-comparable
Where this word comes from

Borrowed from Italian.

adj/ˈləʊ.kəʊ/UK
  1. Crazy.

    colloquial
  2. Intoxicated by eating locoweed.

    Southwestern · US
Where this word comes from

From Spanish loco (“insane, crazy; loose”).

noun/ˈləʊ.kəʊ/UK
  1. A certain species of Astragalus or Oxytropis, capable of causing locoism.

    countable · uncountable
Where this word comes from

From Spanish loco (“insane, crazy; loose”).

verb/ˈləʊ.kəʊ/UK
  1. To poison with the loco plant; to affect with locoism.

    transitive
  2. To render insane.

    broadly · colloquial · transitive
Where this word comes from

From Spanish loco (“insane, crazy; loose”).

noun/ˈləʊ.kəʊ/UK
  1. Short for locomotive.

    abbreviation · alt-of · informal
  2. Short for locofoco, in its various senses.

    US · abbreviation · alt-of · historical · informal
Where this word comes from

From clipping of locomotive and locofoco, both from Latin locus (“place, cause”).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.