slipper Syllabification: (slip·per)Pronunciation: /ˈslipər/Translate slipper | into French | into German | into Italian | into Spanish Definition of slipper noun a comfortable slip-on shoe that is worn indoors. a light slip-on shoe, especially one used for dancing. Derivatives slippered adjective slipper in other Oxford dictionaries Definition of slipper in the British & World English dictionary