Dictionary & Thesaurus API

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Look up any English word and get comprehensive data including definitions, pronunciation (with audio), synonyms, antonyms, etymology, and example sentences.

Why Use This Actor?

Building a language app? Writing tool? Educational content? This actor gives you structured, clean dictionary data ready to use. No parsing HTML, no rate limits to worry about, no API keys needed.

Use Cases

• Writing Apps - Help users find the right words with synonyms and definitions
• Language Learning - Build vocabulary apps with pronunciation audio
• Content Tools - Enhance content with word variations and meanings
• Chatbots - Give your bot dictionary lookup capabilities
• Educational Games - Create word games with rich word data

Features

• Definitions organized by part of speech (noun, verb, adjective, etc.)
• Phonetic pronunciation with audio file URLs
• Synonyms and antonyms for each definition
• Etymology (word origin) when available
• Example sentences showing usage
• Bulk lookup - process multiple words at once

Input

Output

{
"word":"serendipity",
"found":true,
"phonetic":"/ˌsɛ.ɹən.ˈdɪ.pɪ.ti/",
"audioUrl":"https://api.dictionaryapi.dev/media/pronunciations/en/serendipity-au.mp3",
"meanings":[
{
"partOfSpeech":"noun",
"definitions":[
{
"definition":"A combination of events which have come together by chance to make a surprisingly good or wonderful outcome.",
"antonyms":["Murphy's law","perfect storm"]
},
{
"definition":"An unsought, unintended, and/or unexpected, but fortunate, discovery.",
"synonyms":["chance","luck"]
}
]
}
],
"synonyms":["chance","luck"],
"antonyms":["Murphy's law","perfect storm"],
"sourceUrls":["https://en.wiktionary.org/wiki/serendipity"]
}

Examples

Look up a single word

{
"words":["ephemeral"]
}

Look up multiple words

{
"words":["ubiquitous","serendipity","ephemeral","eloquent"]
}

Get just definitions (no extras)

{
"words":["algorithm"],
"includeSynonyms":false,
"includeAntonyms":false,
"includePhonetics":false,
"includeEtymology":false,
"includeExamples":false
}

Pricing

Pay per result:

• Actor start: $0.00005 per run
• Per word: $0.002 per word looked up