Definify.com

Webster 1913 Edition

Understudy

Un′der-studˊy

,

Verb.

T.

&

I.

(Theater)

To study, as another actor’s part, in order to be his substitute in an emergency; to study another actor's part.

Un′der-studˊy

,

Noun.

One who studies another's part with a view to assuming it in an emergency.