perk up

phrasal verb·1 sense·particle up

Meanings

1

Become or make more cheerful or lively

Why “up”? More of something is higher. Quantity, intensity and speed all rise.

The good news perked her up.
The good news made her more cheerful.
The coffee perked him up.
The coffee made him more lively.

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The good news perked her up. What does it mean?

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