speed bump vs hitch

speed bump and hitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
speed bump	Yes	No	No	No
hitch	Yes	No	Yes	No

As nouns, hitch is a hypernym of speed bump; that is, hitch is a word with a broader meaning than speed bump:

speed bump: a hindrance to speeding created by a crosswise ridge in the surface of a roadway
hitch: any obstruction that impedes or is burdensome

Other hypernyms of speed bump include encumbrance, hinderance, hindrance, incumbrance, interference, preventative, preventive.

speed bump (noun)	hitch (noun)
a hindrance to speeding created by a crosswise ridge in the surface of a roadway	the uneven manner of walking that results from an injured leg
	a knot that can be undone by pulling against the strain that holds it; a temporary knot
	a connection between a vehicle and the load that it pulls
	any obstruction that impedes or is burdensome
	an unforeseen obstacle
	the state of inactivity following an interruption
	a period of time spent in military service

speed bump (verb)	hitch (verb)
	to hook or entangle
	connect to a vehicle:
	travel by getting free rides from motorists
	walk impeded by some physical limitation or injury
	jump vertically, with legs stiff and back arched