Meaning of rejuvenate

re•ju•ve•nate

1. to make young again; restore to youthful vigor, appearance, etc.: That vacation has certainly rejuvenated him.
2. to restore to a former state; make fresh or new again: to rejuvenate an old sofa.
1. to renew the activity, erosive power, etc., of (a stream) by uplift or by removal of a barrier in the stream bed.
2. to impress again the characters of youthful topography on (a region) by the action of rejuvenated streams.

1. to undergo rejuvenation; revive.