The term 'MOVED SMOOTHLY' can be described by four different crossword solutions: SLID (4 letters), GLIDED (6 letters), EASED (5 letters), and FLOWED (6 letters). All of these words imply a smooth, effortless movement, suggesting that the subject in question was able to move without any difficulty or obstruction. The word 'slid' implies a quick, sliding motion, while 'glided' suggests a more graceful, floating movement. 'Eased' implies a gentle, unhurried motion, and 'flowed' suggests a continuous, uninterrupted movement.