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to perk up
[phrase form: perk]
01
to become more energetic or lively
Examples
After a short nap, she started to perk up.
The dog perked up when he heard the sound of the treat jar opening.
02
to make someone or something more alert
Examples
The news of a surprise bonus really perked up the employees.
The coach's motivational speech perked up the team before the game.
