---
title: "AP US Government Key Terms"
description: "553 AP US Government key terms and definitions organized by AP® Course and Exam Description unit."
canonical: "https://fiveable.me/ap-gov/key-terms"
type: "key-terms-hub"
subject: "AP US Government"
---

# AP US Government Key Terms

## Overview

553 AP US Government key terms and definitions organized by AP® Course and Exam Description unit.

## Units

- [Unit 1: Unit 1 – Foundations of American Democracy](/ap-gov/key-terms/unit/1): 89 terms across 9 topics
- [Unit 2: Unit 2 – Interactions Among Branches of Government](/ap-gov/key-terms/unit/2): 148 terms across 15 topics
- [Unit 3: Unit 3 – Civil Liberties and Civil Rights](/ap-gov/key-terms/unit/3): 107 terms across 13 topics
- [Unit 4: Unit 4 – American Political Ideologies and Beliefs](/ap-gov/key-terms/unit/4): 77 terms across 10 topics
- [Unit 5: Unit 5 – Political Participation](/ap-gov/key-terms/unit/5): 132 terms across 13 topics

## Related Resources

- [AP US Government subject hub](/ap-gov)
- [All AP® key terms](/key-terms)

## About This Document

Canonical Fiveable pages are available as Markdown at the same path plus `.md`.

- [llms.txt](https://fiveable.me/llms.txt): index of Fiveable's sections and URL patterns
- [llms-full.txt](https://fiveable.me/llms-full.txt): complete subject and unit listing
- [MCP server](https://fiveable.me/mcp): call Fiveable as tools instead of fetching pages (`https://fiveable.me/api/mcp`)
- [MCP server for AP teachers](https://fiveable.me/mcp/teachers): a teacher's classes, assignments and AP-rubric grading (`https://fiveable.me/api/mcp/teacher`)