laminate vs plyboard

laminate and plyboard both are nouns.

Word	Noun	Adjective	Verb	Adverb
laminate	Yes	No	Yes	No
plyboard	Yes	No	No	No

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

Other hyponyms of laminate include plastic laminate, plywood.

laminate (noun)	plyboard (noun)
a sheet of material made by bonding two or more sheets or layers	a laminate made of thin layers of wood

laminate (verb)	plyboard (verb)
cover with a thin sheet of non-fabric material
press or beat (metals) into thin sheets
split (wood) into thin sheets
create laminate by bonding sheets of material with a bonding material