The term 'REMOVE KNOTS' can be solved by two crossword solutions: UNTIE (5 letters) and UNTANGLE (8 letters). Both terms refer to the act of undoing something that is tangled or knotted. The term 'UNTIE' is often used to describe the act of undoing a knot in a rope, while 'UNTANGLE' is more often used to describe the act of undoing a knot in a thread or string. Both terms are used to describe the same action, but with different objects.