turnabout vs reorientation

turnabout and reorientation both are nouns.

Word	Noun	Adjective	Verb	Adverb
turnabout	Yes	No	No	No
reorientation	Yes	No	No	No

As nouns, reorientation is a hypernym of turnabout; that is, reorientation is a word with a broader meaning than turnabout:

turnabout: turning in the opposite direction
reorientation: the act of changing the direction in which something is oriented

Other hypernyms of turnabout include change of direction.

turnabout (noun)	reorientation (noun)
turning in the opposite direction	the act of changing the direction in which something is oriented
a decision to reverse an earlier decision	a fresh orientation; a changed set of attitudes and beliefs