Definition of "graduation"

The action or process of graduating and receiving a diploma for completing a course of study (such as from an educational institution).  examples

A commencement ceremony.  examples

(Japanese entertainment) The action or process of leaving a group.  examples

(sciences) A marking (e.g., on a container) indicating a measurement on a scale, usually one of many such markings.  examples

The exposure of a liquid in large surfaces to the air, so as to hasten its evaporation.  examples