1. 
   Understudy
   An actor playing a small part in a production or, in the professional theatre, often an Assistant Stage Manager, who has learned and rehearsed the part of one of the leading actors to take over from him/her in the event of illness etc.
   Found op http://www.britishtheatreguide.info/otherresources/glossary/glosswz.htm
   
   
2. 
   Understudy
   An actor who learns the part of another ready to step into their shoes should they not be able to perform due to illness or other reasons. Also Cover.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   understudy
   [n] - an actor able to replace a regular performer when required 2. [v] - be an understudy or alternate for a role
   Found op http://www.webdictionary.co.uk/definition.php?query=understudy
   
   
4. 
   Understudy
   An actor playing a small part in a production or, in the professional theatre, often an Assistant Stage Manager, who has learned and rehearsed the part of one of the leading actors to take over from him/her in the event of illness etc.
   Found op http://www.encyclo.co.uk/local/21207
   
   
5. 
   understudy
   standby noun an actor able to replace a regular performer when required
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=understudy
   
   
6. 
   Understudy
   • (n.) One who studies another`s part with a view to assuming it in an emergency. • (v. t. & i.) To study, as another actor`s part, in order to be his substitute in an emergency; to study another actor`s part.
   Found op http://thinkexist.com/dictionary/meaning/understudy/
   
   
7. 
   Understudy
   In theater, an understudy is a performer who learns the lines and blocking/choreography of a regular actor or actress in a play. Should the regular actor or actress be unable to appear on stage because of illness or emergencies, the understudy takes over the part. Usually, when the understudy takes...
   Found op http://en.wikipedia.org/wiki/Understudy
   
   
8. 
   understudy
   1) Actor 2) Broadway backup 3) Histrion 4) Player 5) Role player 6) Standby 7) Thespian
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/understudy/1
   
   

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