'come alive' definitions:

Definition of 'come alive'

From: WordNet
verb
Stop sleeping; "She woke up to the sound of the alarm clock" [syn: wake up, awake, arouse, awaken, wake, come alive, waken] [ant: dope off, doze off, drift off, drop off, drowse off, fall asleep, flake out, nod off]

Synonyms of 'come alive'

From: Moby Thesaurus