Linear refers to something that is arranged or progressing in a straight line or in a predictable, sequential manner. It can also describe something that is characterized by a direct and logical progression, without any significant deviations or interruptions. In mathematics, linear refers to a relationship or equation that can be graphed as a straight line. In everyday language, linear can be used to describe a clear and straightforward thought process or argument. Overall, linear conveys a sense of order, consistency, and simplicity.