proxy

US /ˈprɑːk.si/
UK /ˈprɑːk.si/
1.

プロキシー

the authority to represent someone else, especially in voting.

:
they may register to vote by proxy
2.

プロキシー

a figure that can be used to represent the value of something in a calculation.

:
the use of a US wealth measure as a proxy for the true worldwide measure