Often with a prepositional phrase, or with to and an infinitive: showing a quick and ardent responsiveness or willingness; eager, enthusiastic, interested.
Acute of mind, having or expressing mental acuteness; penetrating, sharp.
Having a fine edge or point; sharp.
Of cold, wind, etc.: cutting, penetrating, piercing, sharp.
Of prices, extremely low as to be competitive.
Acrimonious, bitter, piercing.
Fierce, intense, vehement.
A prolonged wail for a deceased person.
To utter with a loud wailing voice or wordless cry.
To mourn.
To make cold, to sharpen.
To utter a keen.
Showing promise, and likely to develop in a desirable fashion.
a promising young apprentice
Encouraging and inspiring confidence.
The act of making a promise.