suppress vs hold in

suppress and hold in both are verbs.

Word	Noun	Adjective	Verb	Adverb
suppress	No	No	Yes	No
hold in	No	No	Yes	No

As verbs, hold in is a hypernym of suppress; that is, hold in is a word with a broader meaning than suppress:

suppress: bring under control by force or authority
hold in: lessen the intensity of; temper; hold in restraint; hold or keep within limits

Other hypernyms of suppress include check, contain, control, curb, hold, moderate.

suppress (verb)	hold in (verb)
bring under control by force or authority	hold back; keep from being perceived by others
lessen to the point of stopping	lessen the intensity of; temper; hold in restraint; hold or keep within limits
put out of one's consciousness	close in
consciously restrain from showing; of emotions, desires, impulses, or behavior
come down on or keep down by unjust use of one's authority