(simile, usually of motorized machinery) To operate flawlessly and smoothly.

(slang, figuratively) To become explosively angry; to lose one's temper.

plural of top-level domain

Alternative spelling of snow on the mountaintop

Alternative spelling of snow on the rooftop

Of vocal sounds: very loudly; as loudly as possible.

plural of roll-top desk

plural of set-top box

plural of anti-top quark

A device that converts an incoming signal into a format displayable by a television.