juxtapose vs lay

juxtapose is not a noun while lay is a noun.

Word	Noun	Adjective	Verb	Adverb
juxtapose	No	No	Yes	No
lay	Yes	Yes	Yes	No

As verbs, lay is a hypernym of juxtapose; that is, lay is a word with a broader meaning than juxtapose:

Other hypernyms of juxtapose include place, pose, position, put, set.

juxtapose (noun)	lay (noun)
	a narrative poem of popular origin
	a narrative song with a recurrent refrain

juxtapose (adjective)	lay (adjective)
	not of or from a profession
	characteristic of those who are not members of the clergy

juxtapose (verb)	lay (verb)
place side by side	put in a horizontal position
	put into a certain place or abstract location
	lay eggs
	prepare or position for action or operation
	impose as a duty, burden, or punishment