The crossword solution for the term 'Piece of Mine' is ORE, which is an acronym for 'Original Equipment Replacement'. ORE is a type of part that is used to replace original parts in a vehicle or other machinery. It is typically made from the same materials as the original part and is designed to fit the same specifications. ORE parts are often cheaper than the original parts, making them a popular choice for those looking to save money on repairs.