As a Noun: 1. The activity or process of giving information to other people or to other living things. English = communication. 2. The systems and processes that are used to communicate or broadcast information, especially by means of electricity or radio waves. English = communications. 3. The act of two or more people talking to each other. English = conversation. As a Verb or Adjective: 1. To use signals such as speech, signs, radio signals, or body movements to give another person information. English = communicate. 2. To make another person aware of an idea or feeling you have. English = communicate. 3. Of two or more people, to talk to each other. English = converse.