Stand-in(phrasal verb)
A person who takes the place or does the job of another person:
Hindi meaning:किसी के स्थान पे काम करना
Synonyms: Deputize, Act, Substitute Replacement, Reserve Backup, Surrogate, Proxy
Example: Lorraine was ready to stand in if helen got sick.
Trick to remember: Stand karna chahiye Stand-in karna chahiye zrurat padne pe. 
