grille vs grillwork

grille and grillwork both are nouns.

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

As nouns, grille and grillwork are synonyms defined as:

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

Other synonyms of grille include grill.

grille (noun)	grillwork (noun)
a framework of metal bars used as a partition or a grate	mesh netting made of wires
grating that admits cooling air to car's radiator	a framework of metal bars used as a partition or a grate
small opening (like a window in a door) through which business can be transacted