English noun: stand-in
|1.||stand-in (person) someone who takes the place of another (as when things get dangerous or difficult)|
|Samples||The star had a stand-in for dangerous scenes.|
We need extra employees for summer fill-ins.
|Synonyms||backup, backup man, fill-in, relief, reliever, substitute|
|Broader (hypernym)||compeer, equal, match, peer|
|Narrower (hyponym)||alternate, double, locum, locum tenens, replacement, stunt man, stunt woman, surrogate|