What are controls?

Noun 1: power, authority, management, command, guidance, supervision, supremacy, charge

2: restraint, check, regulation, brake, limitation, curb

3: self-discipline, self-restraint, self-command

4: switch, instrument, button, dial, lever, knob

Verb 1: have power over, manage, direct, handle, command, govern, administer, supervise

2: limit, restrict, curb, check, contain, hold back, subdue, repress