apposition vs emplacement

apposition and emplacement both are nouns.

Word	Noun	Adjective	Verb	Adverb
apposition	Yes	No	No	No
emplacement	Yes	No	No	No

As nouns, emplacement is a hypernym of apposition; that is, emplacement is a word with a broader meaning than apposition:

Other hypernyms of apposition include locating, location, placement, position, positioning.

apposition (noun)	emplacement (noun)
the act of positioning close together (or side by side)	the act of putting something in a certain place
(biology) growth in the thickness of a cell wall by the deposit of successive layers of material	military installation consisting of a prepared position for siting a weapon
a grammatical relation between a word and a noun phrase that follows