screwdriver Syllabification: (screw·driv·er)Pronunciation: /ˈskro͞oˌdrīvər/Translate screwdriver | into French | into German | into Italian | into Spanish Definition of screwdriver noun 1a tool with a flattened, cross-shaped, or star-shaped tip that fits into the head of a screw to turn it. 2a cocktail made from vodka and orange juice. screwdriver in other Oxford dictionaries Definition of screwdriver in the British & World English dictionary