Answer: gradation

AnswerCrossword Clue
GRADATIONNuance
GRADATIONGradual change.
GRADATIONAct of arranging in stages.
GRADATIONSubtle change
GRADATIONShift in steps
gradationprogress from one degree or state to another
gradationstage in such a series
gradationchange taking place in a series of stages