MACADAM /məˈkædəm/ Scrabble 14 Words With Friends 17 Definition noun broken stone used in macadamized roadways. noun a paved surface having compressed layers of broken rocks held together with tar. — synonyms: tarmacadam, tarmac See all 14 words you can make from MACADAM → 7-letter words Words starting with M Words ending with M ← Unscramble different letters