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]
(..) what I'm sure will be a landmark day for Apex Communications. Today... we begin official use... of a new generation of communication technology. Okay. We're clear by now. You want the honors? Okay, Porter. This is for you. (..)2002 Shark Attack 3: Megalodon