/ kəˌmjuːnɪˈkeɪʃn; NAmE / noun
1.
[ U ] the activity or process of expressing ideas and feelings or of giving people information :
Speech is the fastest method of communication between people.
All channels of communication need to be kept open.
Doctors do not always have good communication skills .
non-verbal communication
We are in regular communication by letter.
2.
[ U ] (also com·mu·ni·ca·tions [ pl. ]) methods of sending information, especially telephones, radio, computers, etc. or roads and railways :
communication systems / links / technology
The new airport will improve communications between the islands.
Snow has prevented communication with the outside world for three days.
3.
[ C ] ( formal ) a message, letter or telephone call :
a communication from the leader of the party
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WORD ORIGIN
late Middle English : from Old French comunicacion , from Latin communicatio(n-) , from the verb communicare to share, from communis common.