apposition vs positioning

apposition and positioning both are nouns.

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

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

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

apposition (noun)	positioning (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
a grammatical relation between a word and a noun phrase that follows

apposition (adjective)	positioning (adjective)
	causing to fall into line or into position