This document discusses concepts of speech and communication. It defines speech as the expression of words, thoughts and feelings through sounds, while communication is sharing information through any medium. It describes different modes of communication including verbal communication using spoken words, non-verbal communication through body language and facial expressions, written communication such as emails and texts, and visual communication using signs and symbols. The document also outlines seven contexts of communication and the key elements and process of communication, including a referent, sender, message, channel, receiver, feedback, and confounding elements.