woodlouse vs slater

woodlouse and slater both are nouns.

Word	Noun	Adjective	Verb	Adverb
woodlouse	Yes	No	No	No
slater	Yes	No	No	No

As nouns, woodlouse and slater are synonyms defined as:

woodlouse and slater: any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats

Other synonyms of woodlouse include wood louse.

woodlouse (noun)	slater (noun)
any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats	any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats