communication

英[kəmjuːnɪ'keɪʃ(ə)n] 美[kə,mjunɪ'keʃən]

1. the activity of communicating; the activity of conveying information;

"they could not act without official communication from Moscow"

2. something that is communicated by or to or between people or groups

3. a connection allowing access between persons or places;

"how many lines of communication can there be among four people?"

"a secret passageway provided communication between the two rooms"