placement vs spatial relation

placement and spatial relation both are nouns.

Word	Noun	Adjective	Verb	Adverb
placement	Yes	No	No	No
spatial relation	Yes	No	No	No

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

placement: the spatial property of the way in which something is placed
spatial relation: the spatial property of a place where or way in which something is situated

Other hypernyms of placement include position.

placement (noun)	spatial relation (noun)
the act of putting something in a certain place	the spatial property of a place where or way in which something is situated
contact established between applicants and prospective employees
the spatial property of the way in which something is placed