stand in
verb1
To substitute for; to replace; (theater) to serve as an understudy.
2
To make one of a party in a bet or other speculation.
3
To take a side in a dispute.
noun, verb — 7 senses
A substitute; a replacement.
To substitute for; to replace; (theater) to serve as an understudy.
To make one of a party in a bet or other speculation.
To take a side in a dispute.
Etymology Deverbal from stand in.
Broadcasting, Film, Media, Television A person of similar size and shape to an actor who substitutes for or replaces that actor during the lengthy process of setting up a shot, but who, unlike a double, does not appear in the film.
A substitute.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for stand in and stand-in.