suppress vs choke back

suppress and choke back both are verbs.

Word	Noun	Adjective	Verb	Adverb
suppress	No	No	Yes	No
choke back	No	No	Yes	No

As verbs, choke back is a hyponym of suppress; that is, choke back is a word with a more specific, narrower meaning than suppress:

suppress (verb)	choke back (verb)
bring under control by force or authority	suppress
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