pepper vs white pepper

pepper and white pepper both are nouns.

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

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

pepper: pungent seasoning from the berry of the common pepper plant of East India; use whole or ground
white pepper: pepper ground from husked peppercorns

Other hyponyms of pepper include black pepper.

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

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 pepper include black pepper, common pepper, Madagascar pepper, Piper nigrum.

pepper (noun)	white pepper (noun)
pungent seasoning from the berry of the common pepper plant of East India; use whole or ground	pepper ground from husked peppercorns
sweet and hot varieties of fruits of plants of the genus Capsicum	climber having dark red berries (peppercorns) when fully ripe; southern India and Sri Lanka; naturalized in northern Burma and Assam
any of various tropical plants of the genus Capsicum bearing peppers
climber having dark red berries (peppercorns) when fully ripe; southern India and Sri Lanka; naturalized in northern Burma and Assam

pepper (verb)	white pepper (verb)
attack and bombard with or as if with missiles
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