A substitute; an alternative; one designated to take the place of another, if necessary, in performing some duty.
A replacement of equal or greater value or function.
A proportion derived from another proportion by interchanging the means.
That which alternates with something else; vicissitude.
Figures or tinctures that succeed each other by turns.
Other; alternative.
Distributed singly at different heights of the stem, and at equal intervals as respects angular divergence
Designating the members in a series, which regularly intervene between the members of another series, as the odd or even numbers of the numerals; every other; every second.
Happening by turns; one following the other in succession of time or place; first one and then the other (repeatedly)
To vary by turns.
To perform by turns, or in succession; to cause to succeed by turns; to interchange regularly.
To 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.
To happen, succeed, or act by turns; to follow reciprocally in place or time; followed by with.
A reserve or substitute.
reinforcements
A copy of a file or record, stored separately from the original, that can be used to recover the original if it is destroyed or damaged.
An accumulation of material caused by a (partial) obstruction or (complete) blockage of the flow or movement of the material, or an accumulation of material that causes an overflow due to the flow being greater than the maximum possible flow.
Supporting, reinforcing; (music) of or related to accompaniment
Standby, reserve or extra.
That is intended as a backup.