Fly \Fly\, v. t. 1. To cause to fly or to float in the air, as a bird, a kite, a flag, etc. The brave black flag I fly. --W. S. Gilbert. 2. To fly or flee from; to shun; to avoid. Sleep flies the wretch. --Dryden. To fly the favors of so good a king. --Shak. 3. To hunt with a hawk. [Obs.] --Bacon. {To fly a kite} (Com.), to raise money on commercial notes. [Cant or Slang]