be on somebody's side

be on (one's) side

To be supportive or in aid of one or one's idea, plan, intention, etc. We're all on your side, Jerry. We just want to see this issue resolved as quickly and easily as possible. If that stellar legal team is on her side, then there's a chance she might actually win this case.
See also: on, side
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

be on somebody’s ˈside

support and agree with somebody: I’m definitely on your side in this.Whose side are you on anyway?
See also: on, side
Farlex Partner Idioms Dictionary © Farlex 2017
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