Pricing

Pay per usage

Free English Dictionary & Definitions Lookup

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.

Pricing

Pay per usage

Rating

0.0

(0)

Developer

D N

Actor stats

Bookmarked

Total users

Monthly active users

8 days ago

Last modified

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)

{
  "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. English only. Coverage varies by word; rare or very new words may return not_found. Polite delays are applied between requests.

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