The term 'move briskly' can be described by four different crossword solutions: STRIDE (6 letters), STIR (4 letters), TROT (4 letters), and HIE (3 letters). STRIDE is defined as taking long steps in a vigorous or determined manner. STIR is defined as to move something lightly with a circular motion. TROT is defined as to run or go at a moderate speed. Lastly, HIE is defined as to move quickly. All of these words describe the action of moving quickly and with purpose.