Oxford Advanced Learners Dictionary 11th Edition -

In the end, the chronicle of this edition is straightforward: it is an artifact of modernity and a tool of instruction. It rewards patience with precision and curiosity with clarity. It refuses to be merely authoritative or merely accommodating. Instead, it occupies the useful middle ground where language learners live—the place of trial, correction, and gradual mastery. Open it often, and you will not merely learn words; you will watch English at work.