Email and Voicemail

Email 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.

Voicemail and email are semantically related. In some cases you can use "Voicemail" instead a noun "Email".

Voicemail noun - A computerized system for answering and routing telephone calls; telephone messages can be recorded and stored and relayed.

Email and voicemail are semantically related. You can use "Email" instead a noun "Voicemail".