fax /fæks/noun 4verb 1forms 7 noun4 •A document sent, or received and printed, by a fax machine. •Ellipsis of fax machine (“the device for faxing; the medium of communication that it provides”).OK, now take it down the hall to the fax.You can send it via email or fax. You can use an online fax service where you upload a PDF and then send it to a fax number. •The face.The fillok hyr deformyt fax wald haue a fair face. — 1710 •(dialect, no longer used) The hair of the head. verb1 •To send a document by means of a fax machine.Hands trembling with excitement and impatience, I faxxed my credit history to Jerry Raskin, the real estate agent listed, and received an appointment to view the place. — 1990 formsfaxed · faxxed · faxing · faxxing · faxes · faxxes · faxxes