To allow time to elapse in an unproductive manner.

(science fiction) a passageway enabling time travel

plural of time machine

Occurring at an unfavourable or inappropriate time; untimely

The time of day at which lunch is eaten.

Alternative spelling of time travel

(intransitive) To travel through time. / (slang) To sleep.

Consideration of other events can greatly influence some desired outcome (such as whether a joke is well received).

Alternative spelling of timesaving

a part of an internal combustion engine that controls the timing of the engine's valves.