A piece of cloth, or other suitable material, sewed or otherwise fixed upon a garment to repair or strengthen it, especially upon an old garment to cover a hole.
A piece of any size, used to repair something for a temporary period only, or that it is temporary because it is not meant to last long or will be removed as soon as a proper repair can be made, which will happen in the near future.
A small piece of black silk stuck on the face or neck to heighten beauty by contrast, worn by ladies in the 17th and 18th centuries; an imitation beauty mark.
A patch file, a file that describes changes to be made to a computer file or files, usually changes made to a computer program that fix a programming bug.