Sharp as a tack
shape someone up
sharp as a tack
Also, sharp as a razor. Mentally acute. For example, She’s very witty—she’s sharp as a tack. These similes are also used literally to mean “having a keen cutting edge” and have largely replaced the earlier sharp as a needle or thorn. The first dates from about 1900, the variant from the mid-1800s.
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noun 1. a passerine bird, Oxyruncus cristatus, of New World tropical forests, having greenish plumage and a pointed bill, related to the tyrant flycatchers.
- Sharp-cut
adjective 1. cut so as to have a sharp edge: a tool with a sharp-cut blade. 2. distinctly outlined; clearly defined.
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adjective 1. having pointed ears. 2. having keen hearing.
- Sharped
adjective, sharper, sharpest. 1. having a thin cutting edge or a fine point; well-adapted for cutting or piercing: a sharp knife. 2. terminating in an edge or point; not blunt or rounded: The table had sharp corners. 3. involving a sudden or abrupt change in direction or course: a sharp curve in the road; The […]