Definition of troll

• n. - A supernatural being, often represented as of diminutive size, but sometimes as a giant, and fabled to inhabit caves, hills, and like places; a witch.
• v. t. - To move circularly or volubly; to roll; to turn.
• v. t. - To send about; to circulate, as a vessel in drinking.
• v. t. - To sing the parts of in succession, as of a round, a catch, and the like; also, to sing loudly or freely.
• v. t. - To angle for with a trolling line, or with a book drawn along the surface of the water; hence, to allure.
• v. t. - To fish in; to seek to catch fish from.
• v. i. - To roll; to run about; to move around; as, to troll in a coach and six.
• v. i. - To move rapidly; to wag.
• v. i. - To take part in trolling a song.
• v. i. - To fish with a rod whose line runs on a reel; also, to fish by drawing the hook through the water.
• n. - The act of moving round; routine; repetition.
• n. - A song the parts of which are sung in succession; a catch; a round.
• n. - A trolley.