[{"Bold_text": "verb (used without object)", "List Items": ["to sing or whistle with trills, quavers, or melodic embellishments:The canary warbled most of the day.", "to yodel .", "(of electronic equipment) to produce a continuous sound varying regularly in pitch and frequency."]}, {"Bold_text": "verb (used with object)", "List Items": ["to sing (an aria or other selection) with trills, quavers, or melodious turns.", "to express or celebrate in or as if in song; carol ."]}, {"Bold_text": "noun", "List Items": ["a warbled song or succession of melodic trills, quavers, etc.", "the act of warbling."]}, {"Bold_text": "noun", "List Items": ["a small, hard tumor on a horse's back, produced by the galling of the saddle.", "a lump in the skin of an 's back, containing the larva of a warble fly warble fly."]}]