Pronunciation: (āk), [key]
—v., ached, ach•ing,
1. to have or suffer a continuous, dull pain: His whole body ached.
2. to feel great sympathy, pity, or the like: Her heart ached for the starving animals.
3. to feel eager; yearn; long: She ached to be the champion. He's just aching to get even.
a continuous, dull pain (in contrast to a sharp, sudden, or sporadic pain).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.