How can this be distinguished from "driver" when presented without context?
When would a word be presented without any context? If it ever is, it is just as correct to assume one translation as the other.
You can't. So if any translation is missing, you can flag it.
I agree with the other comments however, this section is titled 'Pop' so 'driver' wouldn't really make sense..
C'mon, pop stars need drivers and getaway cars . . .
It is also indistinguishable from the word knight