cumin vs cumin seed

cumin and cumin seed both are nouns.

Word	Noun	Adjective	Verb	Adverb
cumin	Yes	No	No	No
cumin seed	Yes	No	No	No

As nouns, cumin and cumin seed are synonyms defined as:

cumin and cumin seed: aromatic seeds of the cumin herb of the carrot family

cumin (noun)	cumin seed (noun)
aromatic seeds of the cumin herb of the carrot family	aromatic seeds of the cumin herb of the carrot family
dwarf Mediterranean annual long cultivated for its aromatic seeds