The medium or the way the message is transmitted.

The individual whom the message is directed or the person who interprets the message.

Any distraction which competes with the message for the receiver's attention.

Communication is the transmission of a message from a sender to a receiver.

The  person who intends to express the message by passing information or ideas to others.

It is composed of messages the receiver sends back to the source.

It talks about the environment where communication takes place.