interposition vs placement

interposition and placement both are nouns.

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

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

interposition: the act or fact of interposing one thing between or among others
placement: the act of putting something in a certain place

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

interposition (noun)	placement (noun)
the action of interjecting or interposing an action or remark that interrupts	the act of putting something in a certain place
the act or fact of interposing one thing between or among others	contact established between applicants and prospective employees
	the spatial property of the way in which something is placed