Smooth transition is a term used to describe a process of transitioning from one state to another without any disruption or difficulty. The term is often used in the context of business, politics, and other areas of life. The crossword solution for this term is 'SEGUE, ' which is defined as a smooth transition from one topic or scene to another. Segueing is a common technique used in writing, film, and other forms of media to create a smooth transition between topics or scenes.