alternating

(verb) go back and forth; swing back and forth between two states or conditions. Synonyms: alternate, jump.

(verb) exchange people temporarily to fulfill certain jobs and functions. Synonyms: alternate.

(verb) be an understudy or alternate for a role. Synonyms: understudy, alternate.

(verb) reverse (a direction, attitude, or course of action). Synonyms: interchange, tack, switch, alternate, flip, flip-flop.

(verb) do something in turns. Synonyms: alternate, take turns. Example: "We take turns on the night shift."

(adj) (of a current) reversing direction. Synonyms: alternating (vs. direct). Example: "Alternating current."

(adj) occurring by turns; first one and then the other. Synonyms: alternate(prenominal), alternating(prenominal). Example: "Alternating feelings of love and hate."