---
title: ToolRouter — Agent Use Case Guide
description: Step-by-step guide for completing a task with a specific AI agent using ToolRouter.
url: https://toolrouter.com/tools/dictionary-words/use-cases/lookup-definitions/chatgpt
---
# How to Look Up Definitions with ChatGPT

ChatGPT goes beyond dictionary definitions to explain how words live in real language. It describes common misuses, explains formality levels, and shows you how the same word functions differently in casual versus professional writing. Vocabulary building becomes an engaging conversation about language itself.

## Setup

{"mcpServers":{"toolrouter":{"command":"npx","args":["-y","toolrouter-mcp"]}}}

## Steps

1. Configure ToolRouter in ChatGPT
2. Ask: "Define this word" and provide the word
3. ChatGPT returns the full definition
4. Request: "How is this word commonly misused?"
5. Deepen your understanding of the word

## Example Prompt

```
Define "ameliorate." What does it mean, how is it pronounced, and when would I use it?
```

## Tips

- ChatGPT can explain nuances between definitions that a dictionary alone does not cover
- Ask for common mistakes people make with the word
- Request the word used in formal and informal contexts
