Feedback-

The response given by the receiver to the sender for the message received by the receiver from the sender is called as “feedback”.

Message-

The idea or information that is encoded using a code in the process of communication is called as “message”.

Barrier-

The factors which affect the error free flow of communication process are called as “barriers” to communication.

Encoding-

It is defined as the process of changing the information into some form of logical and coded message.