The term 'Hook Shape' can be described as a shape that has a curved end, resembling a hook. The crossword solutions for this term are ESS (3 letters) and CEE (3 letters). ESS stands for Extended S-Shaped Hook, which is a type of hook shape that has a longer curved end than a regular hook shape. CEE stands for Curved End Extension, which is a type of hook shape that has a curved end that extends beyond the main body of the shape. Both of these terms refer to the same type of shape, but they are used to describe different variations of it.