blacktop Syllabification: (black·top)Pronunciation: /ˈblakˌtäp/ chiefly North AmericanDefinition of blacktop noun asphalt, or other black material used for surfacing roads: [as modifier]:blacktop roads a road or area surfaced with asphalt or other black material:playing hopscotch on the blacktop behind the school verb (blacktops, blacktopping, blacktopped) [with object] surface (a road or area) with asphalt or other black material:41 miles had been blacktopped to dateblacktop in other Oxford dictionaries Definition of blacktop in the British & World English dictionary