Cambridge Dictionary is a premier online resource for English language learners and users, operated by **Cambridge University Press**, the world’s oldest publishing house dating back to 1584. Since launching Cambridge Dictionaries Online in 1999, the organization has provided free access to authoritative, learner-focused English dictionaries that are continuously expanding and updated[1]. The dictionary content is uniquely informed by extensive linguistic data from the **Cambridge English Corpus**, which contains over 1.5 billion words of real-world English usage, and the **Cambridge Learner Corpus**, a collection of exam scripts from English learners worldwide. This empirical foundation ensures definitions, usage examples, and language guidance reflect contemporary English accurately and pedagogically soundly[1]. Cambridge University Press, established under a royal charter in 1534, has a rich publishing heritage including influential historical figures like Isaac Newton and Stephen Hawking. The Press’s expertise in education and language learning is exemplified by Cambridge Dictionary’s integration with their broader English learning tools designed for teachers, students, and schools globally[1][2]. In 2021, Cambridge University Press merged operationally with Cambridge Assessment, forming **Cambridge University Press & Assessment**, a unified organization that oversees the dictionary alongside educational assessments. This merger strengthens its position as a leader in education technology and language resources, serving millions worldwide. The entity is governed by an 18-member Syndicate from the University of Cambridge and emphasizes academic rigor and innovation[3]. Notably, Cambridge Dictionary stands out for its commitment to accessibility and user feedback, aiming to serve a diverse global audience with free, high-quality language resources. It also leverages technology and linguistic research to maintain its status as the number one dictionary website worldwide, supporting language learners and educators in a digital age[1][3]. Overall, Cambridge Dictionary exemplifies a successful blend of historical prestige, academic excellence, and modern digital innovation in language education and reference.