Collins English Dictionary is a comprehensive word reference with definitions for world, regional and dialect English. Improve your vocabulary with 130,000 entries and over 200,000 definitions, including the latest words to enter the language. Usage notes give advice on using the right word in the right place, and thousands of etymologies trace the roots of modern English. There are also thousands of entries for people and places and in-depth coverage of scientific and technical vocabulary. All words, definitions, and usage notes are based on the Collins Corpus - our 4.5 billion-word database of today's English - making it an authoritative and up-to-date word reference.