Information Density: Oxford Languages – Signal Evidence & AI Readability

[H1] Leading the way in language data
For over 150 years, Oxford Languages has provided the highest-quality lexical data, powering cutting-edge linguistic research and enterprise solutions that drive innovation, communication, and global understanding.
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[H2] Trusted by leading organizations and research institutions
We’re proud to power some of the most well-known dictionary definition and language solutions, used daily across the world. Speak to us about our range of products, or to create a bespoke solution for your specific requirements.
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[H2] Oxford Languages is committed to unlocking the power of language for learning and for life
From bespoke language datasets to self-service APIs to our flagship Oxford English Dictionary, all Oxford Languages content is uniquely curated and delivered by our expert team of lexicographers, linguists, and language technologists to the highest of standards.

[H2] Why choose Oxford Languages?
[H3] Expertise
With 150+ years of experience, we have a rich heritage and deep expertise in lexicography.
[H3] Quality
Our meticulously human-curated content ensures the highest quality, accuracy, and reliability.
[H3] Integrity
As part of Oxford University Press, we uphold ethical standards in everything we do.
[H3] Authority
Trusted by millions worldwide, we collaborate with top institutions to access local language data for our customers.
[H3] Customer Success
Each customer receives dedicated support, and we strive to understand each customer’s unique needs.
[H3] Innovation
We invest in research and technology to enhance our offerings, pushing the boundaries of what is possible.
[H2] What our customers say
“Working with the Oxford Languages team has been a huge asset for us. Their dataset pronunciations are succinct, straight to the point, and have the right balance of contextual, historical, and alternative metadata for each entry.”
Rhyan JohnsonMachine Learning Product Manager
“Our mission is to help our users to understand, use, and learn languages at work, in school and in their free time, and one of the cornerstones in our offering are reliable, up-to-date dictionaries. In Oxford Languages we have the perfect partner for this: they bring to the table the world’s best dictionaries combined with a deep understanding of our business.”
Liisa SténChief Operating Officer
“In a time when information is abundant but not always reliable, we rely on Oxford University Press as a source of unquestionable authority and authenticity. The depth and accuracy of the data enable us to create features that help people expand their vocabulary and communicate with confidence. What we value most about our partnership with Oxford Languages is our shared commitment to quality, trust, and making world-class language knowledge accessible to everyone.”
Nikolay KussovskiGM, Dictionaries & Translators
“Working with Oxford for our online dictionary solution has been seamless. Their support, flexibility, and willingness to answer questions have helped us provide a very valuable student accommodation for our online testing platform.”
Jeremy WagnerProduct Manager
“Oxford University Press has been an exceptional content partner to Naver. Their meticulous editorial standards, breadth of coverage, and learner-friendly examples elevate our English–Korean, English–English, and English–Japanese dictionaries and deliver measurable impact for our users.”
Jina ParkSL, Dictionary Service
“As a product manager, I have been aware of Oxford University Press’s dictionary offerings for over 20 years. They have been integrated into other assistive technology products that I have helped develop throughout my career.”
Roger SteinbergDirector of Communications & Marketing
[H4] Ready to get started?
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[H1] About Us
We’ve been advancing language solutions for over 150 years, and we’re just getting started.
[H2] Our story is just beginning…
Oxford Languages is committed to unlocking the power of language for learning and for life.
Our world-class language research programme builds on over 150 years of experience and technological innovation to deliver authoritative, evidence-based content in more than 60 languages.
From bespoke language datasets to self-service APIs to our flagship Oxford English Dictionary, all Oxford Languages content is uniquely curated and delivered by our expert team of lexicographers, linguists, and language technologists to the highest of standards.
We bring this unparalleled expertise to partnerships across the globe as we work with like-minded innovators to advance learning and communication for future generations.
Trusted by big tech, academic institutions, and local community initiatives alike, our language data is at the forefront of global communication, powering the products, research, and projects that are making language knowledge available to all.
[H2] Our mission
We’ve been at the forefront of language innovation for over a century and a half.
Starting with printed dictionaries, we now empower global platforms with world-renowned lexical data.
Behind the brand, there’s a team of experts, passionate about making a difference.
[H2] Our story
We believe in the transformative power of language.
For over 150 years, we’ve been on a mission to advance language knowledge and make it accessible to everyone, everywhere.
Our story began in the mid-19th century when a group of scholars from the Philological Society of London, set out to document the entire English language. This ambitious project led to the creation of the Oxford English Dictionary (OED), a ground-breaking work that’s redefined how language is studied. It took 71 years of painstaking research and collaboration, but the result was a ten-volume masterpiece that captured the richness and complexity of the English language like never before. The OED was more than just a dictionary; it was a revolutionary approach to understanding language.
By gathering real-life evidence of words in use from people all over the world, we created a living record of how language evolves. This innovative spirit became the foundation of Oxford Languages and has driven us to explore new frontiers in language research ever since. Today, our work goes far beyond the OED. We’ve expanded our expertise to cover over 60 languages, providing high-quality lexical data in formats that meet the needs of a global, digital world. From online dictionaries and data solutions to our Oxford Dictionaries API, we support everyone – from researchers at Universities to industry leading tech giants used by millions every day.
[H2] Champions of language innovation
Oxford Languages has a long history of excellence, and it’s all down to the people behind our brand. From industry-leading lexicographers to expert product and data teams, we’re proud to be unlocking the power of language for all.
[H4] FAQs
[H3] Are you a part of Oxford University Press?
Yes, Oxford Languages is an integral part of Oxford University Press, a department of the University of Oxford. We are dedicated to developing world-class lexical resources and are guided by the same commitment to excellence that defines the University.
[H3] Where do you source your language data from?
We source our language data from a combination of world-renowned institutions and our team of expert in-house lexicographers. As part of Oxford University Press, we have unique access to a vast network of academic and linguistic resources, ensuring that our data is comprehensive, accurate, and reflective of real-world language use. Our in-house lexicographers meticulously analyze and curate this data to maintain the highest standards of lexical integrity.
[H3] What makes Oxford Languages unique?
What sets us apart is our commitment to making world-renowned lexical data accessible to everyone – from FTSE100 companies to start-ups and university researchers. Our mission is to unlock the power of language for all, ensuring that even smaller companies can leverage our resources to make a meaningful impact for their users. We’re not just about providing data; we’re about building lasting relationships. Our dedicated Customer Success team is passionate about working closely with our customers to ensure it’s more than just a transaction – it’s an ongoing relationship.
[H3] What industries do you serve?
We serve a wide range of industries, from technology and publishing to finance, healthcare, and beyond. Our lexical data is designed to meet the needs of any sector that relies on accurate, comprehensive language resources. Whether you’re developing AI, enhancing digital content, or conducting research, our data is versatile enough to support every industry, helping businesses and institutions of all sizes unlock the power of language for their users.

[H2] Empowering your applications with trusted language products
From bespoke language datasets to self-service APIs to our flagship Oxford English Dictionary, all Oxford Languages content is uniquely curated and delivered by our expert team of lexicographers, linguists, and language technologists to the highest of standards
Discover our range of products below, or contact us to talk through your requirements.
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[H2] Word Lists
Curated, domain-rich word lists built from Oxford’s world-leading language research. Ideal for enhancing search, learning, writing, and game experiences.
Browse available word lists
[H2] Pronunciation & Audio Data
High-quality audio and phonetic transcriptions that capture authentic global English pronunciations for learning, accessibility, and voice applications.
Learn about our audio data
[H2] Dictionary Language Datasets
Accurate, research-driven dictionary data including definitions, examples, usage notes and more. Ready to power search, writing support, and AI experiences.
Discover our dictionary data
[H2] Oxford Dictionaries API
Real-time access to Oxford’s trusted dictionary data through a simple, scalable API designed for seamless developer integration.
See API features
[H2] Word Games Developers’ Toolkit
Fair, accurate, and up-to-date word resources tailored for game creators, enabling smoother gameplay and better player experiences.
See toolkit features
[H2] Why are we so highly rated?
[H3] Oxford Languages
Human-curated by world-class linguists, native speakers, and lexicographers.
Trusted by leading organizations across the globe, from big tech to academic institutions.
Covers regional dialects, spelling variants, and evolving language trends.
Available in JSON, XML, and via our Oxford Dictionaries API for real-time access.
Advanced filtering for offensive or inappropriate terms.
Dedicated customer success and technical teams to guide integration and optimize performance.
[H3] Generic data providers
Often machine-generated or crowdsourced with inconsistencies.
Unverified sources with mixed quality.
Limited support for linguistic variations.
Rigid structures, often requiring heavy pre-processing.
Minimal filtering, increasing compliance risks.
Limited or no customer support post-delivery.
[H2] Ready to find out more?
Connect with our experts for a personalized consultation to find the best solution to meet your unique needs.
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[H2] Empowering your applications with trusted language data
Whether you are a global tech giant, an innovative start-up, or a leading academic institution, we have the perfect solution for you.
Discover our offerings below or connect with our experts for a personalized consultation to find the best solution to meet your unique needs.
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[H2] Display & Lookup
With our world-leading dictionary datasets, we’ve helped companies across multiple industries launch powerful, user-friendly dictionary features inside their products.
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[H2] Text-to-Speech
Our pronunciations and audio data elevates performance across a wide range of speech-driven experiences. Build clearer, more natural speech output with data crafted by expert lexicographers.
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[H2] Language Learning
With support for 60+ languages, region-specific variants, and extensive metadata, our datasets bring the depth and clarity needed to build engaging, personalized learning experiences.
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[H2] Game Development
Create engaging word games with our developers’ toolkit. Access curated word lists, difficulty levels, and definitions to build fun, educational, and dynamic language-based experiences.
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[H2] Data for AI
Power your AI models with expertly curated multi-domain and domain-specific data. Our structured datasets help train smarter, more accurate machine learning models for a variety of use cases.
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[H2] Want to find out more?
Connect with our experts for a personalized consultation to find the best solution to meet your unique needs.
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