Telecommunication
Part of speech: noun
Definition: The science and technology of the communication or messages over a distance, especially using electric, electronic or electromagnetic impulses A message so transmitted
Telecom
Part of speech: noun
Definition: Telecommunication.A telephone company, telco.
Example sentence: Bell Labs was an astonishing place for many decades, though it fell on somewhat hard times during the telecom meltdown some years ago, as its corporate owner had to cope with shrinking markets.