noun

1. COMMUNICATION, something that is communicated by or to or between people or groups
2. COMMUNICATION, the activity of communicating; the activity of conveying information
3. COMMUNICATION, a connection allowing access between persons or places
4. COMMUNICATION, the act or process of using words, sounds, signs, or behaviors to express or exchange information or to express your ideas, thoughts, feelings, etc., to someone else
5. COMMUNICATION, a message that is given to someone : a letter, telephone call, etc.
6. COMMUNICATION, the ways of sending information to people by using technology

1. He is studying insect communication.
2. There was a breakdown in communication between members of the group.
3. television and other means of mass communication