Synonyms: surrogate, alternate, replacement
Definition: someone who takes the place of another person
Similar words: stand-in, substitute, relief, reliever, backup, backup man, fill-in
Definition: someone who takes the place of another (as when things get dangerous or difficult)
Usage: the star had a stand-in for dangerous scenes; we need extra employees for summer fill-ins
Synonyms: alternate, take turns
Definition: do something in turns
Usage: We take turns on the night shift
Definition: perform an action, or work out or perform (an action)
Usage: think before you act; We must move quickly; The governor should act on the new energy bill; The nanny acted quickly by grabbing the toddler and covering him with a wet towel
Definition: go back and forth; swing back and forth between two states or conditions
Similar words: vary, change, alter
Definition: become different in some particular way, without permanently losing one's or its former characteristics or essence
Usage: her mood changes in accordance with the weather; The supermarket's selection of vegetables varies according to the season
Synonyms: alternate, switch, tack, interchange, flip, flip-flop
Definition: reverse (a direction, attitude, or course of action)
Similar words: turn, change by reversal, reverse
Definition: change to the contrary
Usage: The trend was reversed; the tides turned against him; public opinion turned when it was revealed that the president had an affair with a White House intern
Synonyms: understudy, alternate
Definition: be an understudy or alternate for a role
Similar words: con, learn, memorise, memorize
Definition: commit to memory; learn by heart
Usage: Have you memorized your lines for the play yet?
Synonyms: alternate
Definition: exchange people temporarily to fulfill certain jobs and functions
Similar words: exchange
Definition: hand over one and receive another, approximately equivalent
Usage: exchange prisoners; exchange employees between branches of the company
Synonyms: alternate, alternating
Definition: occurring by turns; first one and then the other
Usage: alternating feelings of love and hate
Synonyms: alternate
Definition: every second one of a series
Usage: the cleaning lady comes on alternate Wednesdays; jam every other day- the White Queen
Synonyms: alternate, alternative, substitute
Definition: serving or used in place of another
Usage: an alternative plan
Similar words: secondary
Definition: being of second rank or importance or value; not direct or immediate
Usage: the stone will be hauled to a secondary crusher; a secondary source; a secondary issue; secondary streams