1. (verb)click, tick make a clicking or tickingsound "The clock ticked away"
2. (verb)tick, ticktock, ticktack, beat make a soundlike a clock or a timer "the clocks were ticking"; "the grandfather clock beat midnight"
3. (verb)tick, retick sew "tick a mattress"
4. (verb)check, check off, mark, mark off, tick off, tick put a checkmark on or near or next to "Please check each name on the list"; "tick off the items"; "mark off the units"