Oxford Advanced Learner’s Dictionary, 9th Edition (OALD9)
An advanced learner’s dictionary is a monolingual learner’s dictionary, that is, a dictionary written for non-native speakers. It differs from a bilingual or translation dictionary, on the one hand, and a standard dictionary written for native speakers or linguistic scholars, on the other.
A learner’s dictionary is intended for non-native speakers who want information about the meaning and usage of words and phrases. Such dictionaries focus on current meanings, omitting outdated uses; etymology, a staple of standard dictionaries, is also usually omitted. All headwords are explained in uncomplicated language, typically using a core defining vocabulary of some 3,000 words, thus making the definitions more digestible to learners. There are many example phrases and sentences, but no quotations. Appendices and interspersed notes serve the targeted readership, providing additional guidance and help, for example with the usage of false friends, i.e. words that are often confused by learners.
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