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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| perk up | |
| —vb | |
| 1. | to make or become more cheerful, hopeful, or lively |
| 2. | to rise or cause to rise briskly: the dog's ears perked up |
| 3. | (tr) to make smarter in appearance: she perked up her outfit with a bright scarf |
| 4. | slang (Austral) (intr) to vomit |
| [C14 perk, perhaps from Norman French perquer; see | |
perk definition
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perk up
Restore to good spirits, liveliness, or good appearance, as in You're exhausted, but a cup of tea will perk you up, or The flowers perked up the whole room. [Mid-1600s]