composing vs placement

composing and placement both are nouns.

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

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

composing: the spatial property resulting from the arrangement of parts in relation to each other and to the whole
placement: the spatial property of the way in which something is placed

Other hypernyms of composing include arrangement.

composing (noun)	placement (noun)
musical creation	the act of putting something in a certain place
the spatial property resulting from the arrangement of parts in relation to each other and to the whole	contact established between applicants and prospective employees
	the spatial property of the way in which something is placed