1. (n.) A small, hard tumor which is produced on the back of a horse by the heat or pressure of the saddle in traveling.

2. (n.) A small tumor produced by the larvae of the gadfly in the backs of horses, cattle, etc. Called also warblet, warbeetle, warnles.

3. (n.) See Wormil.

4. (v. t.) To sing in a trilling, quavering, or vibratory manner; to modulate with turns or variations; to trill; as, certain birds are remarkable for warbling their songs.

5. (v. t.) To utter musically; to modulate; to carol.

6. (v. t.) To cause to quaver or vibrate.

7. (v. i.) To be quavered or modulated; to be uttered melodiously.

8. (v. i.) To sing in a trilling manner, or with many turns and variations.

9. (v. i.) To sing with sudden changes from chest to head tones; to yodel.

10. (n.) A quavering modulation of the voice; a musical trill; a song.

air anthem ballad bark bawl bellow blare blat blubber boom bray breathe buzz cackle call carol caw chant chatter cheep chirk chirp chirr chirrup chitter choir chorus chuck clack cluck cock-a-doodle-doo coo croak cronk croon crow cuckoo descant diapason do-re-mi drawl drum exclaim flute gabble gaggle gasp gobble growl grunt guggle hiss honk hoo hoot hum hymn intonate intone keen lay lilt measure melodia minstrel mumble murmur mutter pant peep pip pipe psalm quack quaver roar roll roulade rumble scold scream screech serenade shake shriek sibilate sigh sing sing in chorus snap snarl snort sob sol-fa solmizate squall squawk squeal strain thunder tremolo trill troll trumpet tune twang tweedle tweedledee tweet twit twitter vocalize wail whine whisper whistle yap yawp yell yelp yodel