jump-start vs start

jump-start and start both are nouns.

Word	Noun	Adjective	Verb	Adverb
jump-start	Yes	No	Yes	No
start	Yes	No	Yes	No

As verbs, start is a hypernym of jump-start; that is, start is a word with a broader meaning than jump-start:

Other hypernyms of jump-start include begin, commence, lead off.

As verbs, start is a hypernym of jump-start; that is, start is a word with a broader meaning than jump-start:

jump-start: start (a car engine whose battery is dead) by connecting it to another car's battery
start: get going or set in motion

Other hypernyms of jump-start include start up.

jump-start (noun)	start (noun)
starting an automobile engine that has a weak battery by means of jumper cables to another car	the act of starting something
	a sudden involuntary movement
	a turn to be a starter (in a game at the beginning)
	the advantage gained by beginning early (as in a race)
	a signal to begin (as in a race)
	the beginning of anything
	a line indicating the location of the start of a race or a game
	the time at which something is supposed to begin

jump-start (verb)	start (verb)
start or re-start vigorously	take the first step or steps in carrying out an action
start (a car engine whose battery is dead) by connecting it to another car's battery	set in motion, cause to start
	play in the starting lineup
	bring into being
	get off the ground
	begin or set in motion
	get going or set in motion
	depart for someplace
	bulge outward
	move or jump suddenly, as if in surprise or alarm
	begin work or acting in a certain capacity, office or job
	begin an event that is implied and limited by the nature or inherent function of the direct object
	have a beginning, in a temporal, spatial, or evaluative sense
	have a beginning characterized in some specified way