sender

Noun sender has 2 senses

• sender(n = noun.person) transmitter - someone who transmits a message; "return to sender"
is a kind of communicator
has particulars: spammer
Derived forms verb send₃, verb send₂

• sender(n = noun.artifact) transmitter - set used to broadcast radio or tv signals;
has parts: aerial, antenna, transmitting aerial
has particulars: jammer, radio transmitter, satellite transmitter, television transmitter
is a kind of set
Derived form verb send₈