be as sharp as a tack

To be intelligent and a quick-thinker. Ted's as sharp as a tack, so he'll find a solution to this problem. Of course Ellen is our valedictorian—she's as sharp as a tack.

be as sharp as a tack

(American)

to be very intelligent He may be old, but he's still as sharp as a tack.

Common Names:

Name	Pronounced	Usage
Geertje	KHAY:R-tyə	Dutch
Terezie	-	Czech
Artur	ər-TOOR (Portuguese), ar-TOOR (Galician), AHR-tuwr (Polish), AHR-toor (German)	Portuguese, Galician, Catalan, Polish, Russian, German, Estonian, Swedish, Romanian, Czech
Yarognev	-	Medieval Slavic
Hossein	-	Persian
Adelita	-	Spanish (Latin American)