TACTIC(S) (noun).

1. (usually used with a sing. v.) the art or science of disposing military or naval forces for battle and maneuvering them in battle.
2. (used with a pl. v.) the maneuvers themselves.
3. (used with a sing. v.) any mode of procedure for gaining advantage or success.

* Excerpted from the Random House Webster's Unabridged Dictionary 3.0.