from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To study or know (a role) so as to be able to replace the regular performer when required.
  • transitive v. To act as an understudy to.
  • intransitive v. To be engaged in studying a role so as to be able to replace the regular performer when required.
  • n. A performer who understudies.
  • n. A person trained to do the work of another.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. to study or know a role to such an extent as to be able to replace the normal performer when required
  • v. to act as an understudy (to someone)
  • n. a performer who understudies; a standby

from the GNU version of the Collaborative International Dictionary of English

  • n. One who studies another's part with a view to assuming it in an emergency.
  • v. To study, as another actor's part, in order to be his substitute in an emergency; to study another actor's part.

from The Century Dictionary and Cyclopedia

  • To memorize (a part) as an understudy.
  • n. Theat., one who has made a special study of a particular part, and is capable of playing that part at a moment's notice in the absence of the actor or actress to whom it is usually assigned.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an actor able to replace a regular performer when required
  • v. be an understudy or alternate for a role


under- +‎ study (Wiktionary)



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