—n.di-fī', dē'fī), [key]
—v., -fied, -fy•ing,
—n., pl. -fies.
1. to challenge the power of; resist boldly or openly: to defy parental authority.
2. to offer effective resistance to: a fort that defies attack.
3. to challenge (a person) to do something deemed impossible: They defied him to dive off the bridge.
4. Archaic.to challenge to a combat or contest.
a challenge; a defiance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.