---
title: "Prime Minister Definition and Role | Model Diplomat"
description: "The Prime Minister is the head of government in a parliamentary system, leading the council of ministers and holding real executive authority."
url: "https://modeldiplomat.com/learn/glossary/prime-minister"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The Prime Minister is the head of government in a parliamentary system, leading the council of ministers and exercising real executive authority on behalf of a nominal head of state.
- What is the difference between the Prime Minister and the President in a parliamentary system?
- Which constitutional articles govern the Indian Prime Minister?
- How is a Prime Minister removed from office?
- What does 'primus inter pares' mean regarding the Prime Minister?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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