suppressor vs suppress

suppressor is a noun but suppress is not a noun.

Word	Noun	Adjective	Verb	Adverb
suppressor	Yes	No	No	No
suppress	No	No	Yes	No

suppressor (noun)	suppress (noun)
an electrical device for suppressing unwanted currents
a gene that suppresses the phenotypic expression of another gene (especially of a mutant gene)
someone who suppresses

suppressor (verb)	suppress (verb)
	bring under control by force or authority
	lessen to the point of stopping
	put out of one's consciousness
	consciously restrain from showing; of emotions, desires, impulses, or behavior
	come down on or keep down by unjust use of one's authority