Wind up is a phrase that can be used to describe the act of winding something up, such as a clock or a toy. The crossword solutions for this term include END (3 letters), COIL (4 letters), WRAP (4 letters), CEASE (5 letters), CLOSE (5 letters), CRANK (5 letters), SPOOL (5 letters), FINALE (6 letters), and TIGHTEN (7 letters). These words all describe the act of winding something up, either physically or metaphorically. For example, END and CEASE refer to the completion of an action, while COIL, WRAP, CLOSE, and TIGHTEN refer to the physical act of winding something up. Similarly, CRANK and SPOOL refer to the winding of a mechanism, such as a clock or a toy. Finally, FINALE refers to the conclusion of something, which is often associated with winding up.