Learner's definition of TACTICAL
: of, relating to, or used for a specific plan that is created to achieve a particular goal in war, politics, etc.
a tactical maneuver/procedure [=a maneuver/procedure that is done to produce a particular result]
They gained a tactical advantage by joining with one of their competitors.
He made a serious tactical error.
The planes provided tactical air support for the soldiers on the ground.
tactical missiles/weapons [=missiles/weapons that are designed to be used over a short distance in a military battle]