clock (instrument to measure or keep track of time) / watch

Superseded spelling of contrarrelógio (superseded by the Orthographic Agreement of 1990. Still used in countries where the agreement hasn’t come into effect; may occur as a sporadic misspelling.)

time bomb (bomb with a timeout mechanism)

plural of bomba-relógio

clock radio (digital alarm clock that includes a radio)

sundial (simple timekeeping device which makes use of sunlight)

atomic clock (extremely accurate clock whose operation is based on an atomic process)

Alternative form of relógio atómico

(retronym) analog clock, analogue clock (clock that displays the time using hands)

wristwatch