Dictionary data built for developers
Definitions, examples, IPA pronunciations, syllables, synonyms, antonyms and synthesized pronunciation audio — one REST API. Free to use right now, no API key required.
curl https://quickpronounce-api.vercel.app/v1/dictionary/wonderfulEndpoints
Two endpoints. Both work anonymously — just send a request.
/v1/dictionary/:wordDefinitions, examples, part of speech, synonyms, antonyms, IPA phonetics and an anglicized syllable breakdown for a single word.
curl https://quickpronounce-api.vercel.app/v1/dictionary/wonderful{
"success": true,
"data": {
"word": "wonderful",
"entries": [
{
"partOfSpeech": "Adjective",
"definitions": [
"Tending to excite wonder; surprising, extraordinary.",
"Surprisingly excellent; very good or admirable."
],
"examples": [
"They served a wonderful six-course meal."
]
},
{
"partOfSpeech": "Adverb",
"definitions": ["Exceedingly, to a great extent."],
"examples": ["The project was wonderfully successful."]
}
],
"defaultPartOfSpeech": "Adjective",
"synonyms": ["well", "great", "all right", "top", "nice"],
"antonyms": ["boring", "common", "disgusting", "dull"],
"phonetics": {
"us": "/ˈwʌndəfl/",
"uk": "/ˈwʌndəfl/"
},
"syllables": {
"us": [
{ "text": "wuhn", "stress": 1 },
{ "text": "derfl", "stress": 0 }
],
"uk": [
{ "text": "wuhn", "stress": 1 },
{ "text": "duhfl", "stress": 0 }
]
}
}
}/v1/pronunciation/:wordEverything the dictionary endpoint returns for phonetics and syllables, plus a synthesized MP3 pronunciation clip (base64-encoded) using Google Cloud’s WaveNet voices.
| Param | Type | Description |
|---|---|---|
accent | query, optional | us (default) or uk |
gender | query, optional | male (default) or female |
speed | query, optional | slow, normal (default) or fast |
curl "https://quickpronounce-api.vercel.app/v1/pronunciation/wonderful?accent=us&gender=female&speed=fast"{
"success": true,
"data": {
"word": "wonderful",
"meta": {
"accent": "us",
"gender": "female",
"speed": "fast"
},
"phonetics": {
"us": "/ˈwʌndəfl/",
"uk": "/ˈwʌndəfl/"
},
"syllables": {
"us": [
{ "text": "wuhn", "stress": 1 },
{ "text": "derfl", "stress": 0 }
],
"uk": [
{ "text": "wuhn", "stress": 1 },
{ "text": "duhfl", "stress": 0 }
]
},
"audio": {
"content": "<base64-encoded mp3>",
"encoding": "base64",
"format": "mp3"
}
}
}Try It Yourself
Search any word and see the live response from both endpoints — no API key needed.
Rate Limits
No API key required right now — usage is limited per IP address while this is in public testing.
/v1/dictionary
/v1/pronunciation
These are fair-use limits enforced per IP while the API is in public testing, not a hard global ceiling. Need higher limits or a dedicated API key? Get in touch.
What's In The Dataset
116,801
Words
373,853
Definitions
333,666
Examples
178,658
Dictionary Entries
Coverage
Averages per entry
POS distribution
Possible Use Cases
Language Learning
Vocabulary builders, pronunciation tools and educational products.
AI Applications
Enhance writing assistants and language-focused AI products.
Browser Extensions
Instant definitions, IPA pronunciation and examples.
Developer Tools
Integrate lexical data into your products quickly.
Creative Writing
Help writers find the perfect word with synonyms and examples.
Accessibility Tools
Plain definitions and IPA guides for understanding complex text.
Building something bigger?
The free tier above works for testing and small projects. For higher limits or a dedicated API key, get in touch. The full enriched dataset is also available as a one-time licensed download, separate from API access.
Dictionary content is derived in part from Wiktionary, used under CC BY-SA 4.0, with definitions and examples rewritten and enriched by QuickPronounce. Pronunciation data draws on CMUdict and WordNet.