Flying Sap. See [Sap].

Flying Shot. A shot fired at something in motion, as a bird on the wing, a ship under sail, etc.; also, one who fires thus.

Flying Torch. The torch used on a staff in signaling.

Fodder. See [Forage].

Foe. An enemy in war; a national enemy; a hostile army; an adversary.

Foeman. An enemy in war.

Fogey. An old-fashioned or singular person; an invalid soldier or sailor.

Foil. A long piece of steel of an elastic temper, mounted somewhat like a sword, which is used to learn to fence with; it is without a point, or any sharpness, having a button at the extremity covered with leather.

Foil. To render vain or nugatory as an effort or attempt; to frustrate; to defeat; to baffle; to balk; as, the enemy attempted to pass the river, but was foiled; he foiled his adversaries.

Foin. A thrust with a pike or sword.