stand-in
nounUK /ˈstænd ɪn/
US /ˈstænd ɪn/
A stand-in is a person who takes someone else's place for a while.
The actor's stand-in waited on set while the lights were adjusted.
RELATED WORDS
OTHER MEANINGS
2. A person who does another person's job temporarily.
She served as a stand-in for the manager during the meeting.
3. A person who looks like a famous actor and appears in their place for some scenes.
The stand-in wore the same costume as the star.
4. Something used temporarily in place of another thing.
This box is just a stand-in for a real table.