attitude vs erect

attitude is a noun but erect is not a noun.

Word	Noun	Adjective	Verb	Adverb
attitude	Yes	No	No	No
erect	No	Yes	Yes	No

attitude (noun)	erect (noun)
a theatrical pose created for effect
the arrangement of the body and its limbs
a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways
position of aircraft or spacecraft relative to a frame of reference (the horizon or direction of motion)

attitude (adjective)	erect (adjective)
	upright in position or posture
	of sexual organs; stiff and rigid

attitude (verb)	erect (verb)
	construct, build, or erect
	cause to rise up