repositioning vs placement

repositioning and placement both are nouns.

Word	Noun	Adjective	Verb	Adverb
repositioning	Yes	No	No	No
placement	Yes	No	No	No

As nouns, placement is a hypernym of repositioning; that is, placement is a word with a broader meaning than repositioning:

Other hypernyms of repositioning include emplacement, locating, location, position, positioning.

repositioning (noun)	placement (noun)
the act of placing in a new position	the act of putting something in a certain place
	contact established between applicants and prospective employees
	the spatial property of the way in which something is placed