clinker brick vs brick

clinker brick and brick both are nouns.

Word	Noun	Adjective	Verb	Adverb
clinker brick	Yes	No	No	No
brick	Yes	No	Yes	No

As nouns, brick is a hypernym of clinker brick; that is, brick is a word with a broader meaning than clinker brick:

clinker brick: a hard brick used as a paving stone
brick: rectangular block of clay baked by the sun or in a kiln; used as a building or paving material

clinker brick (noun)	brick (noun)
a hard brick used as a paving stone	rectangular block of clay baked by the sun or in a kiln; used as a building or paving material
	a good fellow; helpful and trustworthy

clinker brick (verb)	brick (verb)
	To stop working (of an electronic device)