1. defy - Noun
2. defy - Verb
To renounce or dissolve all bonds of affiance, faith, or obligation with; to reject, refuse, or renounce.
To provoke to combat or strife; to call out to combat; to challenge; to dare; to brave; to set at defiance; to treat with contempt; as, to defy an enemy; to defy the power of a magistrate; to defy the arguments of an opponent; to defy public opinion.
A challenge.
Source: Webster's dictionaryYou must not fear death, my lads; defy him, and you drive him into the enemy's ranks. Napoleon Bonaparte
Grammar, perfectly understood, enables us not only to express our meaning fully and clearly, but so to express it as to enable us to defy the ingenuity of man to give to our words any other meaning than that which we ourselves intend them to express. William Cobbett
People who don't believe in government are likely to defy our government. Bill Moyers
The complexities of cause and effect defy analysis. Douglas Adams
Feed sparingly and defy the physician. American Proverb
Eat and drink measurely, and defy the mediciners. Traditional Proverb