trouble-shoot vs repair

trouble-shoot is not a noun while repair is a noun.

Word	Noun	Adjective	Verb	Adverb
trouble-shoot	No	No	Yes	No
repair	Yes	No	Yes	No

As verbs, repair is a hypernym of trouble-shoot; that is, repair is a word with a broader meaning than trouble-shoot:

trouble-shoot: solve problems
repair: restore by replacing a part or putting together what is torn or broken

Other hypernyms of trouble-shoot include bushel, doctor, fix, furbish up, mend, restore, touch on.

trouble-shoot (noun)	repair (noun)
	the act of putting something in working order again
	a frequently visited place
	a formal way of referring to the condition of something

trouble-shoot (verb)	repair (verb)
solve problems	give new life or energy to
	restore by replacing a part or putting together what is torn or broken
	set straight or right
	move, travel, or proceed toward some place
	make amends for; pay compensation for