halfpennyPronunciation: /ˈheɪpni/ (also ha'penny)Translate halfpenny | into Italian | into Spanish Definition of halfpenny noun (plural for separate coins halfpennies, for a sum of money halfpence /ˈheɪp(ə)ns/) a former British coin equal to half an old or new penny. The last halfpenny was withdrawn in 1984: seven pennies and three halfpennieshalfpenny in other Oxford dictionaries Definition of halfpenny in the US English dictionary