Pocket Dictionary and Thesaurus by Chambers
The Chambers Pocket Dictionary & Thesaurus is a one-stop shop for help with English. Combining a comprehensive dictionary with an extensive thesaurus, this is the essential pocket-sized tool for anyone wanting to use English in a more colourful and creative way. It also includes grammar tips to help avoid mistakes, for example commonly confused words such as 'affect' and 'effect', as well as word histories.