perk up

1. (intransitive)To become more upright

   His ears perked up when he heard there would be ice cream.

2. (intransitive)To become more lively or enthusiastic.

3. (transitive)To cause to be more upright, straighten up.

   cause to be alert and energetic

4. (transitive)To cause to be more lively or enthusiastic.

5. (intransitive, obsolete)To exalt oneself, take on a higher status or position.

1. Tom will perk up.

   ruТом воспрянет духом. — odexed

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2. People drink coffee to perk themselves up.

   ruКофе пьют, чтобы взбодриться. — nina99nv

   deMenschen trinken Kaffee, um munter zu werden. — Yorwba

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3. The dog's ears were perked up on high alert.

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4. The black coffee perked him up for the night.

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5. He'll perk up.

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irregular