control
/kən-ˈtrōl/
verb
to exercise restraining or directing influence over : regulate
to have power over : rule
to reduce the incidence or severity of especially to innocuous levels
control one's anger
A single company controls the industry.
noun
an act or instance of controlling; also : power or authority to guide or manage
skill in the use of a tool, instrument, technique, or artistic medium
the regulation of economic activity especially by government directive —usually used in plural
a singer's control of her voice
noun
an experiment in which all variable factors have been kept constant and which is used as a standard of comparison to the experimental component in a controlled experiment