obstruction vs hitch

obstruction and hitch both are nouns.

Word	Noun	Adjective	Verb	Adverb
obstruction	Yes	No	No	No
hitch	Yes	No	Yes	No

As nouns, hitch is a hyponym of obstruction; that is, hitch is a word with a more specific, narrower meaning than obstruction:

As nouns, hitch is a hyponym of obstruction; that is, hitch is a word with a more specific, narrower meaning than obstruction:

obstruction: something immaterial that stands in the way and must be circumvented or surmounted
hitch: an unforeseen obstacle

Other hyponyms of obstruction include barrier, roadblock, hang-up, rub, snag, hurdle, stymie, stymy.

obstruction (noun)	hitch (noun)
getting in someone's way	the uneven manner of walking that results from an injured leg
the act of obstructing	a knot that can be undone by pulling against the strain that holds it; a temporary knot
any structure that makes progress difficult	a connection between a vehicle and the load that it pulls
something immaterial that stands in the way and must be circumvented or surmounted	any obstruction that impedes or is burdensome
the physical condition of blocking or filling a passage with an obstruction	an unforeseen obstacle
	the state of inactivity following an interruption
	a period of time spent in military service

obstruction (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