straightness vs conformation

straightness and conformation both are nouns.

Word	Noun	Adjective	Verb	Adverb
straightness	Yes	No	No	No
conformation	Yes	No	No	No

As nouns, conformation is a hypernym of straightness; that is, conformation is a word with a broader meaning than straightness:

Other hypernyms of straightness include configuration, contour, form, shape.

straightness (noun)	conformation (noun)
a sexual attraction to (or sexual relations with) persons of the opposite sex	acting according to certain accepted standards
freedom from crooks or curves or bends or angles	any spatial attributes (especially as defined by outline)
(of hair) lack of a tendency to curl	a symmetrical arrangement of the parts of a thing
having honest intentions
trueness of course toward a goal