fax

1. The medium of communication that a fax machine provides. (countable, uncountable) · 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.
2. A document sent, or received and printed, by a fax machine. (countable, uncountable) · I've just received the fax you sent me.

Plural faxes