to let fly v. To discharge (missiles).

Of a ‘star’ or meteor: To dart across the sky. Cf. shooting star, n.

To let off or discharge like a bolt; to shoot.

transitive. To fire (a shot, bullet, etc.). In early use also: †to let fly, launch (a missile, a blow, etc.) (obsolete). Also figurative and in…

To send out, cast, discharge, or direct, with some degree of quickness and force.

Now chiefly literary and poetic. transitive. To shoot out or project (something).

To send forth, let fly, discharge (a missile).

To send flying, let fly (as a missile); to send off swiftly, to dart.

To direct, aim, ‘send’, shoot (a missile) (Scottish); †figurative to utter.

transitive. To send forth or project (an immaterial or abstract thing) like an arrow. poetic in early use. Now somewhat archaic.

To cause (an object) to sail through the air; to throw, fling; to lob. U.S. colloquial.

To throw with violence, let fly. dialect.