- understudy, standby - an actor able to replace a regular performer when required
--1 is a kind of actor, histrion, player, thespian, role player
Derived form: verb understudy1
- understudy, alternate - be an understudy or alternate for a role
--1 is one way to memorize, memorise, con, learn
Sample sentence:Derived form: noun understudy1
Somebody ----s