point of view vs posture

point of view and posture both are nouns.

Word	Noun	Adjective	Verb	Adverb
point of view	Yes	No	No	No
posture	Yes	No	Yes	No

As nouns, posture is a hypernym of point of view; that is, posture is a word with a broader meaning than point of view:

Other hypernyms of point of view include position, stance.

point of view (noun)	posture (noun)
the spatial property of the position from which something is observed	the arrangement of the body and its limbs
a mental position from which things are viewed	characteristic way of bearing one's body
	capability in terms of personnel and materiel that affect the capacity to fight a war
	a rationalized mental attitude

point of view (verb)	posture (verb)
	assume a posture as for artistic purposes
	behave affectedly or unnaturally in order to impress others