preform vs shape

preform is not a noun while shape is a noun.

Word	Noun	Adjective	Verb	Adverb
preform	No	No	Yes	No
shape	Yes	No	Yes	No

As verbs, shape is a hypernym of preform; that is, shape is a word with a broader meaning than preform:

Other hypernyms of preform include forge, form, mold, mould, work.

As verbs, shape is a hypernym of preform; that is, shape is a word with a broader meaning than preform:

Other hypernyms of preform include forge, form, mold, mould, work.

preform (noun)	shape (noun)
	the spatial arrangement of something as distinct from its substance
	any spatial attributes (especially as defined by outline)
	the visual appearance of something or someone
	alternative names for the body of a human being
	a perceptual structure
	a concrete representation of an otherwise nebulous concept
	the state of (good) health (especially in the phrases `in condition' or `in shape' or `out of condition' or `out of shape')

preform (verb)	shape (verb)
form or shape beforehand or determine the shape of beforehand	give shape or form to
form into a shape resembling the final, desired one	shape or influence; give direction to
	make something, usually for a specific function