To stay awake waiting for somebody to return. / (colloquial, often used in the imperative, US) To wait.

(idiomatic) To eagerly anticipate; to find it hard to wait for a forthcoming pleasurable event. / To need to be attended to right away.

To wait as a server in a restaurant or other dine-in eatery.

plural of waiting list

To be hiding, waiting to ambush or attack someone, or simply to accost them unexpectedly.

plural of wait state

plural of waiting room

(South Africa) One of numerous acacias and mimosas and relatives. / Ziziphus mucronata (buffalo thorn, Cape thorn) / The grapple plant (Uncarina leptocarpa).

The common prickly ash (Zanthoxylum americanum). / The greenbrier (Smilax spp., esp. Smilax rotundifolia) / Any of various species of hawthorn (Crataegus crus-galli, etc.).

(idiomatic) A strategy or course of action in which one or more parties refrain from direct action until circumstances change in their favor.