true pepper vs vine

true pepper and vine both are nouns.

Word	Noun	Adjective	Verb	Adverb
true pepper	Yes	No	No	No
vine	Yes	No	No	No

As nouns, vine is a hypernym of true pepper; that is, vine is a word with a broader meaning than true pepper:

true pepper: any of various shrubby vines of the genus Piper
vine: a plant with a weak stem that derives support from climbing, twining, or creeping along a surface

true pepper (noun)	vine (noun)
any of various shrubby vines of the genus Piper	a plant with a weak stem that derives support from climbing, twining, or creeping along a surface