stand in

listen to the pronunciation of stand in
الإنجليزية - الإنجليزية
A substitute; a replacement

Her stand in muffed a lot of lines.

To substitute for; to replace; to serve as an understudy
If you stand in for someone, you take their place or do their job, because they are ill or away. I had to stand in for her on Tuesday when she didn't show up. the acting president, who's standing in while she's out of the country. see also stand-in
one who comes to change the place of a permanent worker that has left temporarily
be a substitute; "The young teacher had to substitute for the sick colleague"; "The skim milk substitutes for cream--we are on a strict diet"
stand in for
To replace; to act as a double or substitute for

I asked my colleague to stand in for me so I could take the day off.

stand-in
A stand-in is an acting term that refers to a person of similar size and shape to an actor that "stands-in" for the actor during the lengthy process that is involved in setting up a shot. This term is not to be confused with a double. The stand-in does not appear in the film

They used a stand-in to set up the lighting so that the actor did not have to be there during the lengthy process.

stand-in
someone who takes the place of another (as when things get dangerous or difficult); "the star had a stand-in for dangerous scenes"; "we need extra employees for summer fill-ins
stand-in
A stand-in is a person who takes someone else's place or does someone else's job for a while, for example because the other person is ill or away. He was a stand-in for my regular doctor
stand in
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