Mimeographing is the process of duplicating documents through the use of a stencil and a printing machine. There are several synonyms for mimeographing, including duplicating, photocopying, reproducing, and printing. Duplicating refers to the act of making a copy or a replica of an original document. Photocopying, on the other hand, involves using a machine to create a duplicate of a document through the use of light. Reproducing refers to the process of making an exact copy of a document, while printing is the act of transferring an image or text onto a surface through the use of a printing press or a duplicating machine. These synonyms are often used interchangeably, depending on the context and the specific process that is being used.