· someone who takes the place of another person

Synonym(s): surrogate, replacement

Hypernym(s): stand-in, substitute, relief, reliever, backup, backup_man, fill-in

· go back and forth; swing back and forth between two states or conditions

Synonym(s): jump

Hypernym(s): change, alter, vary

· exchange people temporarily to fulfill certain jobs and functions

Hypernym(s): exchange

· be an understudy or alternate for a role

Synonym(s): understudy

Hypernym(s): memorize, memorise, con, learn

· reverse (a direction, attitude, or course of action)

Synonym(s): interchange, tack, switch, flip, flip-flop

Hypernym(s): change_by_reversal, turn, reverse

· do something in turns; "We take turns on the night shift"

Synonym(s): take_turns

Hypernym(s): act, move

· every second one of a series; "the cleaning lady comes on alternate Wednesdays"; "jam every other day"- the White Queen

· serving or used in place of another; "an alternative plan"

Synonym(s): alternative, substitute

· occurring by turns; first one and then the other; "alternating feelings of love and hate"

Synonym(s): alternating

· of leaves and branches etc; first on one side and then on the other in two ranks along an axis; not paired; "stems with alternate leaves"

Antonym(s): opposite