(intransitive, of an engine) to idle (to run at a slow speed, or out of gear). / (idiomatic, of, e.g. a process or a business) To run smoothly and without problems.

Any of several plants, of the genus Bidens, having yellow flowers and prickly fruit. / The barbed fruit of these plants, which sticks to clothing and to animal fur.

simple past tense and past participle of tick off

A small, immature tick larva.

(pathology) any of various diseases transmitted by ticks

To make continual clicking sounds like those of an analog clock.

Alternative form of tick tock

Clicking sounds like those of an analog clock.

A small space on a form in which a tick or cross may be placed as a response.

plural of tick box