binding vs medical aid

binding and medical aid both are nouns.

Word	Noun	Adjective	Verb	Adverb
binding	Yes	Yes	No	No
medical aid	Yes	No	No	No

As nouns, medical aid is a hypernym of binding; that is, medical aid is a word with a broader meaning than binding:

Other hypernyms of binding include medical care.

binding (noun)	medical aid (noun)
the act of applying a bandage	professional treatment for illness or injury
the protective covering on the front, back, and spine of a book
strip sewn over or along an edge for reinforcement or decoration
one of a pair of mechanical devices that are attached to a ski and that will grip a ski boot; the bindings should release in case of a fall
the capacity to attract and hold something

binding (adjective)	medical aid (adjective)
executed with proper legal authority