brake lining vs liner

brake lining and liner both are nouns.

Word	Noun	Adjective	Verb	Adverb
brake lining	Yes	No	No	No
liner	Yes	No	No	No

As nouns, liner is a hypernym of brake lining; that is, liner is a word with a broader meaning than brake lining:

brake lining: the lining on the brake shoes that comes in contact with the brake drum
liner: a protective covering that protects an inside surface

Other hypernyms of brake lining include lining.

brake lining (noun)	liner (noun)
the lining on the brake shoes that comes in contact with the brake drum	(baseball) a hit that flies straight out from the batter
	a large commercial ship (especially one that carries passengers on a regular schedule)
	a piece of cloth that is used as the inside surface of a garment
	a protective covering that protects an inside surface