WordReference Random House Learner's Dictionary of American English © 2026
tel•e•com•mu•ni•ca•tions /ˌtɛlɪkəˌmyunɪˈkeɪʃənz/USA pronunciation   n. [uncountable* used with a singular verb]
  1. TelecommunicationsSometimes, telecommunication. the science and technology of sending information over great distances, in the form of electromagnetic signals, as by telegraph or television.
  2. Usually, telecommunication. the act or fact of communicating in such a manner:in constant telecommunication with London.

WordReference Random House Unabridged Dictionary of American English © 2026
tel•e•com•mu•ni•ca•tions  (tel′i kə myo̅o̅′ni kāshənz),USA pronunciation n. 
  1. TelecommunicationsSometimes, telecommunication. (used with a sing. v.) the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television.
  2. TelecommunicationsSometimes, telecommunication. (used with a sing. v.) the science and technology of such communication.
  3. Telecommunications telecommunication, a message so transmitted.

adj. 
  1. Telecommunicationsof or pertaining to telecommunications.
  • tele-1 + communication + -s3 1930–35

'telecommunication' also found in these entries (note: many are not synonyms or translations):

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