Replacement
Part of speech: noun
Definition: A person or thing that takes the place of another; a substitute.
Example sentence: I'm against any religion, and Communism and Nazism - they're both equally religions. They're just replacement gods.
Alternate
Part of speech: adjective
Definition: Being or succeeding by turns; one following the other in succession of time or place; by turns first one and then the other; hence, reciprocal.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.Other or alternative.Distributed, as leaves, singly at different heights of the stem, and at equal intervals as respects angular divergence. --Gray.
Part of speech: noun
Definition: That which alternates with something else; vicissitude.A substitute; an alternative; one designated to take the place of another, if necessary, in performing some duty.A proportion derived from another proportion by interchanging the means.A replacement of equal or greater value or function.Figures or tinctures that succeed each other by turns.
Part of speech: verb
Definition: To perform by turns, or in succession; to cause to succeed by turns; to interchange regularly.To happen, succeed, or act by turns; to follow reciprocally in place or time;—followed by with.To vary by turns.
Example sentence: We must always strive for greater heights at the town council level to continue building the public's confidence in alternate political leaders.