grill vs grille

grill and grille both are nouns.

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

As nouns, grill and grille are synonyms defined as:

grill and grille: a framework of metal bars used as a partition or a grate

Other synonyms of grill include grillwork.

grill (noun)	grille (noun)
a framework of metal bars used as a partition or a grate	a framework of metal bars used as a partition or a grate
a restaurant where food is cooked on a grill	grating that admits cooling air to car's radiator
	small opening (like a window in a door) through which business can be transacted

grill (verb)	grille (verb)
cook over or under a grill
examine thoroughly