Synonyms of understudy
stand-in • He was an understudy to Charlie Chaplin on a tour of the USA.
stand-in • He was a stand-in for my regular doctor.
reserve • In this sport, you always have to have reserves.
substitute • She is seeking a substitute for the man who broke her heart.
replacement • a replacement for the injured player
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replacementSomeone who takes someone else's place in an organization, government, or team can be referred to as their replacement.
• a replacement for the injured player
• In this sport, you always have to have reserves.
stand-inA 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.
Thesaurus for understudy from the Collins English Thesaurus
to study (a role or part) so as to be able to replace the usual actor or actress if necessary