Possible Definitions:
1. Control (n.) A duplicate book, register, or account, kept to correct or check another account or register; a counter register.
2. Control (n.) That which serves to check, restrain, or hinder; restraint.
3. Control (n.) Power or authority to check or restrain; restraining or regulating influence; superintendence; government; as, children should be under parental control.
4. Control (v. t.) To check by a counter register or duplicate account; to prove by counter statements; to confute.
5. Control (v. t.) To exercise restraining or governing influence over; to check; to counteract; to restrain; to regulate; to govern; to overpower.
6. Control (n.) The complete apparatus used to control a mechanism or machine in operation, as a flying machine in flight;
7. Control (n.) the mechanism controlling the rudders and ailerons.
8. Control (n.) Any of the physical factors determining the climate of any particular place, as latitude,distribution of land and water, altitude, exposure, prevailing winds, permanent high- or low-barometric-pressure areas, ocean currents, mountain barriers, soil, and vegetation.