What is the meaning of the word "control"?

Definitions:

a mechanism that controls the operation of a machine noun
- The speed control on their turntable was not working properly and played offtempo music.
a relation of constraint of one entity (thing or person or group) by another noun
- measures for the control of disease
a standard against which other conditions can be compared in a scientific experiment noun
- The control condition was inappropriate for the conclusions they wished to draw.
in physiology, regulation or maintenance of a function or action or reflex etc noun
- The timing and control of their movements were unimpaired.
power to direct or determine noun
- under control
the activity of managing or exerting control over something noun
- the control of the mob by the police was admirable
the economic policy of controlling or limiting or curbing prices or wages etc. noun
- they wanted to repeal all the legislation that imposed economic controls
to check or regulate a scientific experiment by conducting a parallel experiment or by comparing with another standard verb
- Are you controlling for the temperature?
to exercise authoritative control or power over verb
- control the budget
to handle and cause to function verb
- I controlled the robot with a remote.
to verify by using a duplicate register for comparison verb
- control an account