cabbage vs crucifer

cabbage and crucifer both are nouns.

Word	Noun	Adjective	Verb	Adverb
cabbage	Yes	No	Yes	No
crucifer	Yes	No	No	No

As nouns, crucifer is a hypernym of cabbage; that is, crucifer is a word with a broader meaning than cabbage:

cabbage: any of various cultivars of the genus Brassica oleracea grown for their edible leaves or flowers
crucifer: any of various plants of the family Cruciferae

Other hypernyms of cabbage include cruciferous plant.

cabbage (noun)	crucifer (noun)
any of various types of cabbage	any of various plants of the family Cruciferae
any of various cultivars of the genus Brassica oleracea grown for their edible leaves or flowers
informal terms for money

cabbage (verb)	crucifer (verb)
make off with belongings of others