constrict vs convulse

constrict and convulse both are verbs.

Word	Noun	Adjective	Verb	Adverb
constrict	No	No	Yes	No
convulse	No	No	Yes	No

As verbs, convulse is a hyponym of constrict; that is, convulse is a word with a more specific, narrower meaning than constrict:

Other hyponyms of constrict include choke, strangle, prim, astringe, strangulate, bear down, overbear, choke, fret, gag, choke, scrag.

constrict (verb)	convulse (verb)
become tight or as if tight	be overcome with laughter
squeeze or press together	make someone convulse with laughter
	contract involuntarily, as in a spasm
	cause to contract
	move or stir about violently
	shake uncontrollably