Gradation
Part of speech: noun
Definition: A sequence of gradual, successive stages; a systematic progression. A passing by small degrees from one tone or shade, as of color, to another. See Synonyms at nuance. The act of gradating or arranging in grades. A gradual change within one parameter, or an overlapping of two blocks of sound. Apophony.
Graduation
Part of speech: noun
Definition: The action or process of graduating and receiving a diploma for completing a course of study (such as from an educational institution).A commencement ceremony.A marking (i.e. on a container) indicating a measurement.