The term 'ADJUST, AS SAILS' can be solved by two crossword solutions: RERIG (5 letters) and TRIM (4 letters). Rerigging is the process of replacing or repairing the rigging of a sailboat, which includes the masts, booms, sails, and other components. Trimming is the act of adjusting the sails to make them more efficient in the wind. Both processes are important for sailing, as they help to ensure that the boat is able to move efficiently and safely through the water.