stand in

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stand in for (someone or something)

To be or act as a substitute for someone or something; to do something in someone's or something's stead. It was decided that I would stand in for my sister at the head of the company while she took her sabbatical. Because of my diet I have this low-calorie spray standing in for olive oil while I cook, but it's just not the same. We stand in for the actors so the crew can light the set properly.
See also: for, stand


1. In film and television, someone who stands in place of an actor while lights, cameras, and sound equipment are set up and adjusted. I got a job as a stand-in for a local television shoot. It's pretty dull work, but the pay is good!
2. By extension, anyone who acts as a substitute for the duty or role of someone else, especially on a temporary basis. The vice-president assumed she would be nothing more than a stand-in while the president recuperated from his illness, but after he died, she was forced to lead the country for real. Don't get so high and mighty with us, Jeff. You're just a stand-in while the boss is on vacation.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

stand in (for someone)

to substitute for someone; to serve in someone's place. The famous opera singer was ill, and an inexperienced singer had to stand in for her. The new singer was grateful for the opportunity to stand in.
See also: stand
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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