The crossword solution for the term 'move smoothly and effortlessly' is GLIDE, which is a 5-letter word. Gliding is a form of movement that involves moving in a smooth, continuous manner with little effort. It is often used to describe the movement of an object or person through air or water. Gliding can also be used to describe the movement of animals, such as birds, fish, and insects. Gliding is a graceful and efficient way of moving, and it can be used to travel long distances with minimal effort.