Definition of warble verb from the Oxford Advanced American Dictionary

     

    warble

     verb
    verb
    NAmE//ˈwɔrbl//
     
    Verb Forms present simple I / you / we / they warble
     
    he / she / it warbles
     
    past simple warbled
     
    -ing form warbling
     
     
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  1. 1[transitive, intransitive] warble (something) + speech (humorous) to sing, especially in a high voice that is not very steady He warbled his way through the song.
  2. 2[intransitive, transitive] warble (something) (of a bird) to sing with rapidly changing notes
I heard the faint warble of Laura's voice.