common pepper vs white pepper

common pepper and white pepper both are nouns.

Word	Noun	Adjective	Verb	Adverb
common pepper	Yes	No	No	No
white pepper	Yes	No	No	No

As nouns, common pepper and white pepper are synonyms defined as:

common pepper and white pepper: climber having dark red berries (peppercorns) when fully ripe; southern India and Sri Lanka; naturalized in northern Burma and Assam

Other synonyms of common pepper include black pepper, Madagascar pepper, pepper, Piper nigrum.

common pepper (noun)	white pepper (noun)
climber having dark red berries (peppercorns) when fully ripe; southern India and Sri Lanka; naturalized in northern Burma and Assam	pepper ground from husked peppercorns
	climber having dark red berries (peppercorns) when fully ripe; southern India and Sri Lanka; naturalized in northern Burma and Assam