fax machine Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a device that sends and receives printed documents over a telephone line. Example Sentence She sent the document to him via a fax machine. More Example Sentences She used the fax machine to send a letter. Synonyms facsimile; document sender Antonyms radio Hear It! Say It! Write It! fax machine Switch to cursive Start Share with your friends: