on somebody's behalf

US /ɑːn ˈsʌmbədiz bɪˈhæf/

UK /ɑːn ˈsʌmbədiz bɪˈhæf/

1.

as a representative of someone else

:

•

She accepted the award on her father's behalf.

•

I'm calling on behalf of my client.

:

for in the name of representing as a representative of on account of

:

behalf on behalf of somebody on somebody’s heels put somebody up to bring somebody to justice lead somebody astray