tin foil vs foil

tin foil and foil both are nouns.

Word	Noun	Adjective	Verb	Adverb
tin foil	Yes	No	No	No
foil	Yes	No	Yes	No

As nouns, foil is a hypernym of tin foil; that is, foil is a word with a broader meaning than tin foil:

As nouns, foil is a hypernym of tin foil; that is, foil is a word with a broader meaning than tin foil:

tin foil (noun)	foil (noun)
foil made of tin or an alloy of tin and lead	a light slender flexible sword tipped by a button
foil made of aluminum	a piece of thin and flexible sheet metal
	picture consisting of a positive photograph or drawing on a transparent base; viewed with a projector
	a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through
	anything that serves by contrast to call attention to another thing's good qualities

tin foil (verb)	foil (verb)
	cover or back with foil
	hinder or prevent (the efforts, plans, or desires) of
	enhance by contrast