These new editions of the popular Collins reference guides are fully up to date, and include the most popular new words in the English language. Clear layouts make content easily accessible. The Gem Dictionary and Gem Thesaurus include a new supplement which offers guidance and examples to help you tackle problems of style and etiquette in everything from letters to emails to social media sites. The world’s best-selling mini dictionary. This new edition, in colour, is fully up-to-date, including the most popular new words to enter the English language.