Telecom
Part of speech: noun
Definition: Telecommunication. A telephone company, telco.
Example sentence: WhatsApp provides phone-number-based messaging, and people asked, 'Isn't that what SMS is?' Yes, but SMS is expensive, antiquated, and what WhatsApp did was modernize and level that playing field. For example, in Europe, if France wants to talk to Belgium, it's extraordinary costly because of border and telecom charges.
Telecommunication
Part of speech: noun
Definition: The science and technology of the communication or messages over a distance, especially using electric, electronic or electromagnetic impulsesA message so transmitted