(obsolete) alteration; change.

(transitive) To change with time or a similar parameter.

(transitive) To institute a change in, from a current state; to modify.

(intransitive) Not to remain constant: to change with time or a similar parameter.

(of the members of a group, intransitive) To display differences.

(intransitive) To be or act different from the usual.

(transitive) To make of different kinds; to make different from one another; to diversity; to variegate.

(transitive, music) To embellish; to change fancifully; to present under new aspects, as of form, key, measure, etc. See variation.

(intransitive, obsolete) To disagree; to be at variance or in dissension.