baffle vs diffuser

baffle and diffuser both are nouns.

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

As nouns, diffuser is a hyponym of baffle; that is, diffuser is a word with a more specific, narrower meaning than baffle:

Other hyponyms of baffle include diffusor.

baffle (noun)	diffuser (noun)
a flat plate that controls or directs the flow of fluid or energy	optical device that distributes the light of a lamp evenly
	baffle that distributes sound waves evenly

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