perplex vs baffle

perplex is not a noun while baffle is a noun.

Word	Noun	Adjective	Verb	Adverb
perplex	No	No	Yes	No
baffle	Yes	No	Yes	No

As verbs, perplex and baffle are synonyms defined as:

Other synonyms of perplex include amaze, beat, bewilder, dumbfound, flummox, get, gravel, mystify, nonplus, pose, puzzle, stick, stupefy, vex.

perplex (noun)	baffle (noun)
	a flat plate that controls or directs the flow of fluid or energy

perplex (verb)	baffle (verb)
make more complicated	restrain the emission of (sound, fluid, etc.)
be a mystery or bewildering to	be a mystery or bewildering to
	hinder or prevent (the efforts, plans, or desires) of