Definitions
1.verbTo exercise influence over; to suggest or dictate the behavior of."With a simple remote, he could control the toy truck."
2.verb(construed with for) To design (an experiment) so that the effects of one or more variables are reduced or eliminated.
3.adjectiveInhibited or restrained in one's words and actions.
4.adjectiveResulting from a comparison with control samples.
5.adjective(in combination) Under the control of the specified entity.