Word.ws English Dictionary

loco

/ˈləʊ.kəʊ/

loco adverb: a direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower. Also the abbreviation of locomotive.

Adverb

loco (not comparable)

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

Adjective

loco (comparative more loco, superlative most loco)

  1. (colloquial) Crazy.
    • It's Cottontail Smith, and he's gone plumb loco!1943 April 3, Super-Rabbit, spoken by an unnamed rabbit
    • Going loco down in Acapulco / If you stay too long / Yes, you'll be going loco down in Acapulco / The magic down there is so strong1988, Phil Collins, “Loco in Acapulco”, in Indestructible, performed by Four Tops
  2. (Southwestern, US) Intoxicated by eating locoweed.
    Synonyms:
    pea struck

Noun

loco (countable and uncountable, plural locos or locoes)

  1. A certain species of Astragalus or Oxytropis, capable of causing locoism.
    Synonyms:
    locoweed

Verb

loco (third-person singular simple present locos, present participle locoing, simple past and past participle locoed)

  1. (transitive) To poison with the loco plant; to affect with locoism.
  2. (broadly, colloquial, transitive) To render insane.
    • They say that he is locoed. The insane asylums of California contain many shepherds.1904, Charles Dudley Warner, “The Locoed Novelist”, in The Complete Essays of C. D. Warner

Also used as

loco is also the abbreviation of locomotive.

loco is also the abbreviation of locofoco.

loco meaning in Tamil and Malayalam

loco in Tamil

லொக்கோ, லொக்கோவிற்கு

loco in Malayalam

ലൊക്കോ

Examples of loco in a sentence

  • All persons in loco parentis have a responsibility to care for the child.
  • The coaches require modifications, including work to ensure they can work in push-pull mode with Class 67 locos.
  • Upon redivorce, the in loco parentis relationship is considered terminated.

All 17 example sentences with loco

Synonyms of loco

Forms of loco

Adjective
comparativemore loco
superlativemost loco
Noun
plurallocos
plurallocoes
Verb
third-person singular presentlocos
present participlelocoing
past participlelocoed
pastlocoed

Origin of loco

Borrowed from Italian.

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

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

Words formed from loco

Phrases with loco

Words that rhyme with loco

Questions about loco

What does loco mean?
Loco means a direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower.
What is loco in Tamil?
Loco in Tamil is லொக்கோ, லொக்கோவிற்கு. See Loco meaning in Tamil.
What part of speech is loco?
Loco can be an adverb, an adjective, a noun or a verb.
How do you pronounce loco?
Loco is pronounced /ˈləʊ.kəʊ/ (UK).

Words near loco in the dictionary

  1. Lockyer
  2. Lockyer Valley
  3. Lockyers
  4. locn
  5. locns
  6. loco
  7. loco moco
  8. loco weed
  9. loco weeds
  10. loco-weed
  11. loco-weeds

Source and license

Adapted from Wiktionary: loco (page history and authors); loco (Tamil, IndicTrans2 machine translation) (model and license); loco (Malayalam, IndicTrans2 machine translation) (model and license). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-loco.wav.

Cite this entry: “loco.” Word.ws, https://word.ws/loco. Based on Wiktionary, CC BY-SA 4.0.