Gradation is a term used to describe the gradual CHANGE from one level or DEGREE to another. The crossword solutions for the term gradation include 'DEGREE' (6 letters), 'VARIATION' (9 letters), 'POSITION' (8 letters), 'NUANCE' (6 letters), 'SERIES' (6 letters), 'SCALE' (5 letters), 'GRADE' (5 letters), 'STEP' (4 letters), and 'CHANGE' (6 letters). All of these words refer to the concept of gradation, which can be seen in the gradual progression from one point to another, such as a SERIES of steps, a SCALE, or a GRADE. The term 'DIFFERENCE' (10 letters) also relates to gradation, as it refers to the distinction between two points on a spectrum.