artichoke heart vs veg

artichoke heart and veg both are nouns.

Word	Noun	Adjective	Verb	Adverb
artichoke heart	Yes	No	No	No
veg	Yes	No	No	No

As nouns, veg is a hypernym of artichoke heart; that is, veg is a word with a broader meaning than artichoke heart:

artichoke heart: the tender fleshy center of the immature artichoke flower
veg: edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant

Other hypernyms of artichoke heart include vegetable, veggie.

artichoke heart (noun)	veg (noun)
the tender fleshy center of the immature artichoke flower	edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant