suppresser vs controller

suppresser and controller both are nouns.

Word	Noun	Adjective	Verb	Adverb
suppresser	Yes	No	No	No
controller	Yes	No	No	No

As nouns, controller is a hypernym of suppresser; that is, controller is a word with a broader meaning than suppresser:

Other hypernyms of suppresser include restrainer.

suppresser (noun)	controller (noun)
an electrical device for suppressing unwanted currents	a mechanism that controls the operation of a machine
a gene that suppresses the phenotypic expression of another gene (especially of a mutant gene)	someone who maintains and audits business accounts
someone who suppresses	a person who directs and restrains