Wordnik
Wordnik: A broad English dictionary with useful vocabulary tools and API access for developers. Ranked #30 of 39 in Online Dictionaries by our editors (6.2/10); pricing: Free plan; best for developers needing dictionary data.
At a glance
- Editor score6.2 / 10
- PricingFree plan
- Best forDevelopers needing dictionary data
- Free planYes
- Paid from$10/mo
- Audio pronunciationYes
- Founded2009
- Facts checked19 Sep 2026
Where it wins
- Multiple definitions, examples, relationships, and audio in one service
- Developer API supports programmatic word and pronunciation data
- Free Basic plan includes 100 calls per hour
Where it doesn't
- Focused on English rather than multiple languages
- Higher API volumes require paid monthly plans
- Commercial use on Free Basic is offered as a free trial
Our verdict on Wordnik
Wordnik is an online English dictionary for learners, writers, researchers, vocabulary explorers, and developers building word-related applications. It combines definitions from multiple dictionaries with real-world example sentences, synonyms, antonyms, related-word relationships, audio pronunciations, reverse lookup, word lists, favorites, word-of-the-day content, and random-word lookup. Its web and API access make it useful both for direct vocabulary research and for adding dictionary features to software.
Pricing is organized around API call volume and added data access. Free Basic costs $0 per month and includes 100 calls per hour, nonprofit or research use, and commercial use as a free trial. Hobby costs $10 per month for 1,000 calls per hour. Pro costs $59 per month for 20,000 calls per hour, plus children's and student dictionary definitions and etymology search. Enterprise costs $149 per month for 45,000 calls per hour, pronunciation search, and etymology search. The paid tiers are most relevant when an application needs more request capacity or deeper lookup options.
Wordnik's strongest fit is a product that needs broad English vocabulary data through the Wordnik API. The API covers definitions, examples, spelling suggestions, synonyms, antonyms, phrases, pronunciations, random words, and word-of-the-day data, while the consumer service adds lists and favorites for ongoing exploration. Its focus is narrower than a multilingual dictionary because the published offering centers on English. Choose Wordnik for English-language dictionary features, examples, relationships, and scalable API access; choose another service if multilingual coverage is central to the project.
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Wordnik pricing
All 4 Wordnik plans and prices →
Wordnik fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $10/mo |
| Audio pronunciation | Yes |
| Usage examples | Yes |
| Translation lookup | Not verified |
| Offline access | Not verified |
| Mobile apps | Not verified |
| Languages covered | 1 |
| Deployment | Cloud |
| Platforms | Web |
| Integrations | 1 integrations: Wordnik API |
| Pricing | Free plan (source) |
| Website | wordnik.com |
| Facts checked | 19 Sep 2026 |
Wordnik integrations
Wordnik lists 1 integrations on its own site.
- Wordnik API
Alternatives to Wordnik
- Cambridge DictionaryA broad English learning reference with free access, audio, examples, and bilingual lookup.9.4
- Collins DictionaryA broad free dictionary for definitions, language tools, translations, and offline mobile lookup.9.3
- The Free DictionaryA broad free reference service with offline access, translations, and specialist dictionaries.9.2
See all Wordnik alternatives →
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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