Definitions from Wiktionary ( )

▸ verb:  (transitive) To change with time or a similar parameter.
▸ verb:  (transitive) To institute a change in, from a current state; to modify.
▸ verb:  (intransitive) Not to remain constant: to change with time or a similar parameter.
▸ verb:  (of the members of a group, intransitive) To display differences.
▸ verb:  (intransitive) To be or act different from the usual.
▸ verb:  (transitive) To make of different kinds; to make different from one another; to diversify; to variegate.
▸ verb:  (transitive, music) To embellish; to change fancifully; to present under new aspects, as of form, key, measure, etc. See variation.
▸ verb:  (intransitive, obsolete) To disagree; to be at variance or in dissension.
▸ noun:  (obsolete) alteration; change.

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