# Free English Dictionary & Definitions Lookup (`fit_melon/free-dictionary-definitions-lookup`) Actor Bulk English word lookup: definitions, phonetics, pronunciation audio, part of speech, synonyms and antonyms. Free, no API key. Clean JSON for word lists, NLP and language apps. - **URL**: https://apify.com/fit\_melon/free-dictionary-definitions-lookup.md - **Developed by:** [D N](https://apify.com/fit_melon) (community) - **Categories:** Developer tools, Other - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks - **User rating**: No ratings yet ## Pricing Pay per usage This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-usage ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js/docs.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python/docs.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## Free English Dictionary & Definitions Lookup **What it does.** Bulk-lookup English words and get clean, structured JSON: definitions, part of speech, phonetic transcription, pronunciation audio, usage examples, plus merged **synonyms** and **antonyms**. Built on the free, open Dictionary API — no API key, no sign-up. Perfect for enriching word lists, building vocabulary/flashcard apps, NLP preprocessing, crosswords, or language-learning tools (dictionnaire anglais, définitions, synonymes). You only pay your Apify platform usage. ### Input | Field | Type | Description | |---|---|---| | `words` | array of strings | English words to look up, one per line. | | `includeExamples` | boolean | Keep usage example sentences (default true). | | `flattenSynonyms` | boolean | Add top-level merged synonym/antonym lists (default true). | ### Output (example) ```json { "status": "found", "word": "hello", "phonetic": "/həˈləʊ/", "audio": "https://api.dictionaryapi.dev/media/pronunciations/en/hello-uk.mp3", "partsOfSpeech": ["noun", "verb", "interjection"], "definitionCount": 5, "meanings": [ { "partOfSpeech": "noun", "definitions": [ { "definition": "A greeting.", "example": "she said hello" } ] } ], "synonyms": ["hi", "howdy"], "antonyms": ["goodbye"] } ```` Each result carries a `status`: `found`, `not_found`, or `error`. Unknown words are recorded as `not_found` — the actor never crashes. ### Use cases - Enrich a vocabulary or word list with definitions and audio. - Power a dictionary, flashcard, or language-learning app. - NLP / text-analysis preprocessing (synonyms, POS tags). - Generate crossword or word-game data. ### Limitations & fair use Data from the community [Free Dictionary API](https://dictionaryapi.dev/). English only. Coverage varies by word; rare or very new words may return `not_found`. Polite delays are applied between requests. ### More actors by this developer See other free, no-key data actors on the [developer profile](https://apify.com/fit_melon). # Actor input Schema ## `words` (type: `array`): English words to look up (one per line). ## `includeExamples` (type: `boolean`): Keep usage example sentences in the output. ## `flattenSynonyms` (type: `boolean`): Add top-level de-duplicated lists of all synonyms and antonyms for the word. ## Actor input object example ```json { "words": [ "serendipity", "ephemeral", "hello" ], "includeExamples": true, "flattenSynonyms": true } ``` # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "words": [ "serendipity", "ephemeral", "hello" ] }; // Run the Actor and wait for it to finish const run = await client.actor("fit_melon/free-dictionary-definitions-lookup").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = { "words": [ "serendipity", "ephemeral", "hello", ] } # Run the Actor and wait for it to finish run = client.actor("fit_melon/free-dictionary-definitions-lookup").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{ "words": [ "serendipity", "ephemeral", "hello" ] }' | apify call fit_melon/free-dictionary-definitions-lookup --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=fit_melon/free-dictionary-definitions-lookup", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "Free English Dictionary & Definitions Lookup", "description": "Bulk English word lookup: definitions, phonetics, pronunciation audio, part of speech, synonyms and antonyms. Free, no API key. Clean JSON for word lists, NLP and language apps.", "version": "0.0", "x-build-id": "PLEeeCyoVahxKxm8k" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/fit_melon~free-dictionary-definitions-lookup/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-fit_melon-free-dictionary-definitions-lookup", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/fit_melon~free-dictionary-definitions-lookup/runs": { "post": { "operationId": "runs-sync-fit_melon-free-dictionary-definitions-lookup", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/fit_melon~free-dictionary-definitions-lookup/run-sync": { "post": { "operationId": "run-sync-fit_melon-free-dictionary-definitions-lookup", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "required": [ "words" ], "properties": { "words": { "title": "Words", "type": "array", "description": "English words to look up (one per line).", "items": { "type": "string" } }, "includeExamples": { "title": "Include examples", "type": "boolean", "description": "Keep usage example sentences in the output.", "default": true }, "flattenSynonyms": { "title": "Add merged synonyms/antonyms", "type": "boolean", "description": "Add top-level de-duplicated lists of all synonyms and antonyms for the word.", "default": true } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```