do duty as

do (double) duty as/for something

(American & Australian)

to also have another purpose They make an electronic identity card that will do duty for a credit card and pocket calculator. She's really the secretary but she does double duty as the receptionist during Katrina's lunch hour.

Common Names:

Name	Pronounced	Usage
Eleutherius	-	Late Greek (Latinized)
Titos	-	Biblical Greek
Tuncay	-	Turkish
Ascot	['æskət]
Tadg	-	Irish, Scottish
RikÁRd	-	Hungarian