What is Controlling?

Controlling definition and meaning on Dictionary terms:
verb (used with object), conA.trolled, conA.trolA.ling.
to exercise restraint or direction over; dominate; command: The car is difficult to control at high speeds. That zone is controlled by enemy troops.
to hold in check; curb: to control a horse; to control one’s emotions.

to test or verify (a scientific experiment) by a parallel experiment or other standard of comparison.
to eliminate or prevent the flourishing or spread of: to control a forest fire.
Obsolete. to check or regulate (transactions), originally by means of a duplicate register.

the act or power of controlling; regulation; domination or command: Who’s in control here?
the situation of being under the regulation, domination, or command of another: The car is out of control.
check or restraint: Her anger is under control.

a legal or official means of regulation or restraint: to institute wage and price controls.
Statistics. control variable(def 1).
a person who acts as a check; controller.
a device for regulating and guiding a machine, as a motor or airplane.
controls, a coordinated arrangement of such devices.
prevention of the flourishing or spread of something undesirable: rodent control.
Baseball. the ability of a pitcher to throw the ball into the strike zone consistently: The rookie pitcher has great power but no control.
Philately. any device printed on a postage or revenue stamp to authenticate it as a government issue or to identify it for bookkeeping purposes.
a spiritual agency believed to assist a medium at a sACance.
the supervisor to whom an espionage agent reports when in the field.

Verb Phrases
control for, Statistics. to account for (variables in an analysis) by limiting the data under consideration to a comparison of like things: to control for demographic factors.