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cuckoo

Pronunciation: /ˈkʊkuː/
Translate cuckoo | into French | into German | into Italian | into Spanish
Definition of cuckoo

noun

  • 1a long-tailed, medium-sized bird, typically with a grey or brown back and barred or pale underparts. Many cuckoos lay their eggs in the nests of small songbirds.
    • Family Cuculidae (the cuckoo family): numerous genera and species, especially the (Eurasian) cuckoo (Cuculus canorus), the male of which has a well-known two-note call. The cuckoo family also includes the coucals, roadrunners, malkohas, and anis
  • 2 informal a mad person.

adjective

informal
  • mad; crazy:people think you’re cuckoo

Phrases

cuckoo in the nest

an unwelcome intruder in a place or situation.

Origin:

Middle English: from Old French cucu, imitative of its call

cuckoo in other Oxford dictionaries

Definition of cuckoo in the US English dictionary