Definitions
1.nounThat which alternates with something else; vicissitude.
2.nounA substitute; an alternative; one designated to take the place of another, if necessary, in performing some duty.
3.nounA proportion derived from another proportion by interchanging the means.
4.nounA replacement of equal or greater value or function.
5.nounFigures or tinctures that succeed each other by turns.
6.verbTo perform by turns, or in succession; to cause to succeed by turns; to interchange regularly.
7.verbTo happen, succeed, or act by turns; to follow reciprocally in place or time; followed by with."The flood and ebb tides alternate with each other."
8.verbTo vary by turns."The land alternates between rocky hills and sandy plains."
9.verbTo perform an alternation (removal of alternate vertices) on (a polytope or tessellation); to remove vertices (from a face or edge) as part of an alternation.