particle board vs fiberboard

particle board and fiberboard both are nouns.

Word	Noun	Adjective	Verb	Adverb
particle board	Yes	No	No	No
fiberboard	Yes	No	No	No

As nouns, particle board and fiberboard are synonyms defined as:

particle board and fiberboard: wallboard composed of wood chips or shavings bonded together with resin and compressed into rigid sheets

Other synonyms of particle board include fibreboard.

particle board (noun)	fiberboard (noun)
wallboard composed of wood chips or shavings bonded together with resin and compressed into rigid sheets	wallboard composed of wood chips or shavings bonded together with resin and compressed into rigid sheets