What is another word for double as?
Pronunciation: [dˈʌbə͡l az] (IPA) 
The phrase "double as" can be replaced with several synonyms, depending on the context. One alternative is "serve as," which implies that something or someone can take on multiple roles. Another option is "act as," which suggests that a person or thing is filling in for another in a temporary or substitute capacity. "Function as" could also work, especially when referring to an object or tool that has a particular purpose but can also be used for something else. Other potential synonyms include "perform as," "play the part of," and "fulfill the function of." All of these phrases convey the idea of doing two things at once or being versatile in some way.
