control vs activity

control and activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
control	Yes	No	Yes	No
activity	Yes	No	No	No

As nouns, activity is a hypernym of control; that is, activity is a word with a broader meaning than control:

As nouns, activity is a hypernym of control; that is, activity is a word with a broader meaning than control:

control: (physiology) regulation or maintenance of a function or action or reflex etc
activity: an organic process that takes place in the body

Other hypernyms of control include bodily function, bodily process, body process.

control (noun)	activity (noun)
the activity of managing or exerting control over something	any specific behavior
(physiology) regulation or maintenance of a function or action or reflex etc	the trait of being active; moving or acting rapidly and energetically
a mechanism that controls the operation of a machine	an organic process that takes place in the body
power to direct or determine	a process existing in or produced by nature (rather than by the intent of human beings)
discipline in personal and social activities	the state of being active
great skillfulness and knowledge of some subject or activity	(chemistry) the capacity of a substance to take part in a chemical reaction
a standard against which other conditions can be compared in a scientific experiment
the economic policy of controlling or limiting or curbing prices or wages etc.
a spiritual agency that is assumed to assist the medium during a seance
a relation of constraint of one entity (thing or person or group) by another
the state that exists when one person or group has power over another

control (verb)	activity (verb)
have a firm understanding or knowledge of; be on top of
be careful or certain to do something; make certain of something
verify by using a duplicate register for comparison
handle and cause to function
maintain influence over (others or oneself) skillfully, usually to one's advantage
exercise authoritative control or power over
lessen the intensity of; temper; hold in restraint; hold or keep within limits
check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard
place under restrictions; limit access to by law