policy change vs about-face

policy change and about-face both are nouns.

Word	Noun	Adjective	Verb	Adverb
policy change	Yes	No	No	No
about-face	Yes	No	Yes	No

As nouns, policy change and about-face are synonyms defined as:

policy change and about-face: a major change in attitude or principle or point of view

Other synonyms of policy change include reversal, volte-face.

policy change (noun)	about-face (noun)
a major change in attitude or principle or point of view	a major change in attitude or principle or point of view
	act of pivoting 180 degrees, especially in a military formation

policy change (verb)	about-face (verb)
	change one's mind and assume the opposite viewpoint
	turn, usually 180 degrees