tarmacadam vs paved surface

tarmacadam and paved surface both are nouns.

Word	Noun	Adjective	Verb	Adverb
tarmacadam	Yes	No	No	No
paved surface	Yes	No	No	No

As nouns, paved surface is a hypernym of tarmacadam; that is, paved surface is a word with a broader meaning than tarmacadam:

tarmacadam: a paved surface having compressed layers of broken rocks held together with tar
paved surface: a level horizontal surface covered with paving material

tarmacadam (noun)	paved surface (noun)
a paved surface having compressed layers of broken rocks held together with tar	a level horizontal surface covered with paving material
a paving material of tar and broken stone; mixed in a factory and shaped during paving