The term 'twisting shape' can be described by two crossword solutions: ESS (3 letters) and SWIRL (5 letters). ESS stands for an elongated S-shaped curve, which is a type of line that curves in one direction, then reverses its direction and curves back again. SWIRL is a word used to describe a shape that is curved or twisted in a spiral pattern. Both of these terms refer to shapes that are curved or twisted in some way.