- noun a type of plough body with a short, sharply curved mouldboard. Diggers are used for deep ploughing, especially to prepare for root crops or for land reclamation.
- noun a tool, machine or part of a machine that is used for digging or excavation
- noun an Australian. The word was used by gold prospectors in the latter half of the 19th century to address or describe one another. It was adopted by British, Canadian and American servicemen in the First World War. Aussie has largely replaced digger since the 1960s.