on behalf of (someone)

for the benefit or support of someone.

A team of lawyers sued the company on behalf of the workers who lost their jobs.

• the party is over
• the path of least resistance
• the patience of a saint
• the patience of Job
• the patter of tiny feet
• the pearly gates
• the pedal to the metal
• the pen is mightier than the sword.
• the penny drops
• the person in the street
• the pick of
• the pick of something
• the picture of
• the picture of something
• the pink pound
• the plot thickens
• the plot thickens.
• the point of no return
• the pot calling the kettle black
• the power behind the throne
• the powers that be
• the primrose path
• the prodigal son
• the promised land
• the proof of the pudding .