control vs understand

control is a noun but understand is not a noun.

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

control (noun)	understand (noun)
the activity of managing or exerting control over something
(physiology) regulation or maintenance of a function or action or reflex etc
a mechanism that controls the operation of a machine
power to direct or determine
discipline in personal and social activities
great skillfulness and knowledge of some subject or activity
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)	understand (verb)
have a firm understanding or knowledge of; be on top of	know and comprehend the nature or meaning of
be careful or certain to do something; make certain of something	perceive (an idea or situation) mentally
verify by using a duplicate register for comparison	believe to be the case
handle and cause to function	make sense of a language
maintain influence over (others or oneself) skillfully, usually to one's advantage	be understanding of
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