(intransitive) To become conscious after having slept.

(transitive) To cause (somebody) to stop sleeping.

(transitive) To make aware of something.

(transitive) To excite or to stir up something latent.

(transitive, figurative) To rouse from a state of inaction or dormancy.

(intransitive, figurative) To come out of a state of inaction or dormancy.

Not asleep; conscious.

(figurative, by extension) Alert, aware.