The phrase "sharp edges" refers to the points or corners on an object that are defined and well-defined, with a clear distinction between the different surfaces. These edges can be rough or smooth, but they have a distinct edge where two surfaces meet. The term is often used in relation to objects made of metal or glass, which tend to have more prominent sharp edges than those made from softer materials like wood or plastic. In general usage, "sharp edges" refers to the presence of well-defined lines and angles on an object that can potentially cause injury if not handled carefully.