This dictionary focuses on contemporary English as it is really used, informed by currently available evidence and the latest research. The dictionary places the most frequently used meanings of each word first, followed by secondary and technical senses, slang, idioms, and historical and obsolete senses. There are over 500 boxed usage notes, giving guidance on all aspects of the language and backed up by extensive analysis of the evidence. Featuring 350,000 words, phrases, and definitions, this dictionary offers comprehensive coverage of English as it is actually used in the 21st century.