Find Synonyms for Better Writing
Discover synonyms and related words to improve your writing, avoid repetition, and find the perfect word.
Look Up Word Definitions
Get detailed definitions for any English word including parts of speech, pronunciation, and usage examples.
Quick answer: Use the Dictionary Words tool through ToolRouter to look up word definitions directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolA reliable dictionary lookup is fundamental to clear communication. Whether you are writing a report, crafting marketing copy, or reading a technical document, knowing the precise meaning of a word matters. Definitions that include parts of speech, pronunciation guides, and usage examples give you the full picture of how a word is used and understood.
The define skill returns comprehensive word definitions including all senses of the word, grammatical information, and example sentences. This is more thorough than a quick web search and returns structured data you can work with programmatically.
How to look up word definitions with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude makes dictionary lookups the starting point of deeper word exploration. Define a word, then ask about its nuances in specific contexts, compare it against similar terms, and explore how it is used differently across fields like law, medicine, and everyday speech. Each follow-up enriches your understanding.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
How to look up word definitions with Claude
Once connected (see setup above), use the Dictionary Words tool:
- Ask Claude: "Define the word ephemeral using dictionary-words"
- Claude returns the full definition with parts of speech and examples
- Ask: "Use this word in three different sentences"
- Understand the word in context
Example prompt for Claude
Try this with Claude using the Dictionary Words tool
Define "ubiquitous" -- give me all meanings, part of speech, and example sentences.
Tips for Claude
- Ask Claude to explain the difference between similar words
- Request definitions in the context of a specific field like law or medicine
- Combine with synonyms to find the best word for your writing
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.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to look up word definitions with ChatGPT
Once connected (see setup above), use the Dictionary Words tool:
- Ask: "Define this word" and provide the word
- ChatGPT returns the full definition
- Request: "How is this word commonly misused?"
- Deepen your understanding of the word
Example prompt for ChatGPT
Try this with ChatGPT using the Dictionary Words tool
Define "ameliorate." What does it mean, how is it pronounced, and when would I use it?
Tips for ChatGPT
- 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
Copilot verifies word meanings right in your editor, ensuring your documentation, code comments, and README files use terms correctly. Look up technical vocabulary, check whether a word carries the connotation you intend, and improve the clarity of your technical writing without switching to a browser.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to look up word definitions with Copilot
Once connected (see setup above), use the Dictionary Words tool:
- In Copilot Chat: "Define this word using dictionary-words"
- Copilot returns the definition
- Ask: "Is this the right word for my documentation?"
- Improve your technical writing
Example prompt for Copilot
Try this with Copilot using the Dictionary Words tool
Define "idempotent" -- I want to make sure I am using it correctly in our API documentation.
Tips for Copilot
- Great for verifying technical terms in documentation and comments
- Copilot can suggest better word choices for your writing
- Look up jargon to ensure your docs are accessible to a broader audience
OpenClaw retrieves word definitions in structured formats suitable for automated processing. Build vocabulary databases, generate glossary content for documentation systems, and create definition lookup features for educational applications by extracting clean, structured lexical data at scale.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to look up word definitions with OpenClaw
Once connected (see setup above), use the Dictionary Words tool:
- Ask OpenClaw: "Define the word pragmatic"
- OpenClaw returns the full definition
- Ask: "Give me an example sentence"
- Use the word confidently
Example prompt for OpenClaw
Try this with OpenClaw using the Dictionary Words tool
Define "efficacy." I need the definition and example sentences.
Tips for OpenClaw
- Check definitions before using unfamiliar words in important documents
- Look up words you encounter in reading to build vocabulary
- Verify that a word means what you think it means before publishing
Frequently Asked Questions
How do I look up word definitions with an AI assistant?
Get detailed definitions for any English word including parts of speech, pronunciation, and usage examples. Connect the Dictionary Words tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Ask Claude: "Define the word ephemeral using dictionary-words" Claude returns the full definition with parts of speech and examples
Which AI assistants can look up word definitions?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all look up word definitions using the Dictionary Words tool through ToolRouter, with no API keys or coding required.
What does the Dictionary Words tool do?
Look up word definitions, find synonyms for better writing, discover rhyming words, and research etymology and usage.
Related Use Cases
Research Word Etymology
Explore the origins and historical development of words, including their roots, language of origin, and how meanings have evolved.
Find Rhyming Words
Discover words that rhyme with any given word for poetry, songwriting, creative writing, and wordplay.
Research Technical Terms
Look up definitions and alternatives for technical, scientific, and domain-specific terminology.