Merriam-Webster

API

Official Dictionary & Thesaurus API from Merriam-Webster

Overview

The Merriam-Webster API provides access to official dictionary entries, thesaurus synonyms/antonyms, word pronunciations, etymologies, and example sentences. Key endpoints include dictionary entries (definitions, parts of speech), thesaurus (related words), and word-of-the-day. Responses are in JSON format. Ideal for building language learning apps, educational tools, content enrichment platforms, or integrating dictionary functionality into websites, offering reliable linguistic data for diverse use cases.

Example Integration (JavaScript)

script.js JS


fetch('https://dictionaryapi.com/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful
JSON Support
Official Linguistic Data
Multiple Endpoints (Dictionary, Thesaurus, WOTD)
Pronunciation Audio Links
Etymology Details

Frequently Asked Questions

? Is Merriam-Webster API free to use?

Yes, it offers a free tier with limited requests; paid plans are available for higher volume and advanced features.

? Does it require an API Key?

Yes, you need to register on dictionaryapi.com to obtain an API key for authentication.

? What is the response format?

All responses are in JSON format, including definitions, synonyms, pronunciations, etymologies, and example sentences.

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Tool Info

Pricing Freemium

Category Dictionaries

Platform Public API

Pros

⊕ Reliable official data
⊕ Comprehensive linguistic information
⊕ Well-documented
⊕ Supports diverse use cases

Cons

⊖ Requires API key
⊖ Free tier has rate limits
⊖ Premium features for paid plans