grill vs broil

grill and broil both are nouns.

Word	Noun	Adjective	Verb	Adverb
grill	Yes	No	Yes	No
broil	Yes	No	Yes	No

As verbs, broil is a hyponym of grill; that is, broil is a word with a more specific, narrower meaning than grill:

Other hyponyms of grill include barbecue, barbeque, cook out, hibachi, oven broil.

grill (noun)	broil (noun)
a framework of metal bars used as a partition or a grate	cooking by direct exposure to radiant heat (as over a fire or under a grill)
a restaurant where food is cooked on a grill

grill (verb)	broil (verb)
cook over or under a grill	cook under a broiler
examine thoroughly	heat by a natural force
	be very hot, due to hot weather or exposure to the sun