sheer vs yaw

sheer is not a noun while yaw is a noun.

Word	Noun	Adjective	Verb	Adverb
sheer	No	Yes	Yes	Yes
yaw	Yes	No	Yes	No

As verbs, yaw is a hyponym of sheer; that is, yaw is a word with a more specific, narrower meaning than sheer:

Other hyponyms of sheer include peel off.

sheer (noun)	yaw (noun)
	an erratic deflection from an intended course

sheer (adjective)	yaw (adjective)
complete and without restriction or qualification; sometimes used informally as intensifiers
not mixed with extraneous elements
very steep; having a prominent and almost vertical front
so thin as to transmit light

sheer (verb)	yaw (verb)
turn sharply; change direction abruptly	deviate erratically from a set course
cause to sheer	swerve off course momentarily
	be wide open

sheer (adverb)	yaw (adverb)
completely
straight up or down without a break