surrogate

US /ˈsɝː.ə.ɡət/
UK /ˈsɝː.ə.ɡət/
1.

người đại diện

replacing someone else or used instead of something else:

:
Because she had no children of her own, her friend's son became a kind of surrogate child to her.
1.

người đại diện

something that replaces or is used instead of something else:

:
For some people, reading travel books is a surrogate for actual travel.