Parents need to have good 'communication' with their children. [=they need to be able to understand and be understood by their children]
a 'communications satellite' [=a satellite that is used to send signals for television, radio, etc., to people around the world]
('formal') We are 'in communication' by e-mail. [=we are communicating with each other by e-mail]
(..) to describe Martinez's mouth. Happy to turn the radios off from here, commander. Just say the word. Wait, johanssen. Constant communication is the hallmark... Shut 'em off. No. Excuse me. Accepted. How many samples (..)2015 The Martian