physical composition vs constitution

physical composition and constitution both are nouns.

Word	Noun	Adjective	Verb	Adverb
physical composition	Yes	No	No	No
constitution	Yes	No	No	No

As nouns, physical composition and constitution are synonyms defined as:

physical composition and constitution: the way in which someone or something is composed

Other synonyms of physical composition include composition, make-up, makeup.

physical composition (noun)	constitution (noun)
the way in which someone or something is composed	the act of forming or establishing something
	the way in which someone or something is composed
	law determining the fundamental political principles of a government