From Longman Dictionary of Contemporary Englishstand in phrasal verbREPLACEto temporarily do someone else’s job or take their place → stand-in for Would you mind standing in for me for a while? → stand→ See Verb table
Examples from the Corpus
stand for• Could he stand in for Clinton?• Fred Thompson, R-Tenn., a former actor, standing in for Clinton.• During the dangerous scenes, a stunt woman stood in for Goldie Hawn.• He would stand in for her.• The President was unavailable and had the Vice President stand in for him.• Can you stand in for me at the meeting next week?• Kathy Rooney stood in for Mr Wogan, and I was a bit tense when it came to the real thing.• Globke was the closest confidant and adviser of Adenauer, who could stand in for the Chancellor.stand-inˈstand-in noun [countable] 1 INSTEADsomeone who does the job or takes the place of someone else for a short time Gilbert failed to find a stand-in and so could not go to the party.2 AMFsomeone who takes the place of an actor for some scenes in a filmstand-in for a stand-in for Tom Cruise → stand in at stand1Examples from the Corpus
stand-in• I'd like Tom to act as a stand-in for Julian until he returns to work.• Perot claims he is serving as a stand-in for whomever the Reform Party nominates at its Labor Day convention.• She told us she has a boyfriend, and that he is acting on the show as a stand-in.• You became a stand-in for your boss at parties and meetings.• Perot is just a stand-in for whomever the Reform Party nominates for president.• Reed had the sewer walls perfumed and used a stand-in when possible.• Russell used a stand-in for most of the action scenes.• However, Tim Flowers' stand-in was up to the shot and knocked the ball down before gathering at the second attempt.• Ms Green couldn't be here today, so I'm her stand-in.• Other political figures are immediately obvious: an embittered Jesse Jackson stand-in.• We always had a permanent stand-in with Mike around.• Ann was Shirley MacLaine's stand-in in the movie.From Longman Business Dictionarystand in phrasal verb [intransitive]HUMAN RESOURCES to temporarily do someone else’s job forCan you stand in for Meg while she’s on vacation? → stand→ See Verb table