aril vs plant part

aril and plant part both are nouns.

Word	Noun	Adjective	Verb	Adverb
aril	Yes	No	No	No
plant part	Yes	No	No	No

As nouns, plant part is a hypernym of aril; that is, plant part is a word with a broader meaning than aril:

aril: fleshy and usually brightly colored cover of some seeds that develops from the ovule stalk and partially or entirely envelops the seed
plant part: any part of a plant or fungus

Other hypernyms of aril include plant structure.

aril (noun)	plant part (noun)
fleshy and usually brightly colored cover of some seeds that develops from the ovule stalk and partially or entirely envelops the seed	any part of a plant or fungus