The phrase "whose side are you on?" is often used in situations where there are opposing views or teams, and it's important to know where someone stands. There are several synonyms that can be used in place of "whose side are you on?" These include "whose team are you on?", "which side do you support?", "where do you stand?", and "are you with them or us?". Each of these options can be used interchangeably to ask someone about their position and encourage them to take a stance on a particular issue. Regardless of the wording, the sentiment is the same: determining where someone stands when there are multiple sides to a story.