[v. di-fahy; n. di-fahy, dee-fahy] 
verb, -fied, -fy⋅ing, noun, plural -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. |
| 5. | a challenge; a defiance. |
