ಅರ್ಥ : A member of a military force that is assigned (often with international sanction) to preserve peace in a trouble area.
ಅರ್ಥ : Someone who keeps peace.
ಉದಾಹರಣೆ :
She's the peacekeeper in that family.
ಅರ್ಥ : The pistol of a law officer in the old West.