E-mail and Faxes

E-mail noun - (computer science) a system of world-wide electronic communication in which a computer user can compose a message at one terminal that can be regenerated at the recipient's terminal when the recipient logs in.

Faxes and e-mail are semantically related. In some cases you can use "Faxes" instead a noun phrase "E-mail".

E-mail and faxes are semantically related. Sometimes you can use "E-mail" instead a noun "Faxes".