Telecopy, also known as fax or facsimile, is a process of transmitting printed information over a telephone line. However, there are certain words that can be used as synonyms for telecopy. One such word is "faxing," which refers to the process of sending or receiving faxed documents. Another synonym for telecopy is "fax machine," which is the device used for transmitting or receiving faxed documents. In addition, the terms "facsimile transmission" and "fax transmission" can also be used interchangeably with telecopy. It is important to note that while these words may have slight differences in meaning, they all refer to the same process of transmitting printed information via telephone lines.