understudies is understudy's Simple Present

understudy

US [ˈʌndərˌstʌdi]

UK [ˈʌndə(r)ˌstʌdi]

Simple Present：understudies Present Participle：understudying Past Tense：understudied

Synonym

understudies

1.	~ (to sb) 候补演员；替角an actor who learns the part of another actor in a play so that they can play that part if necessary

1.	~ sb/sth 排练当候补演员；做替角to learn a part in a play as an understudy ; to act as an understudy to sb

v.	1. 【戏】练习做(临时替角);临时代替(某演员)演出 2. 实地研习,实习(某工作)
n.	1. 垫角,临时替角,候补演员;【体】〈美〉后补队员 2. 候补人员;生力军

v.	1. to work as an understudy for a particular actor
n.	1. an actor whose job is to learn someone else’s part in a play so that they can perform if that person is sick