WordStock is a home screen widget designed to help users enhance their vocabulary. With over 4000 words and example sentences, this app allows you to view lexical categories such as Noun, Verb, and Adjective. You can use the Text-To-Speech feature to hear the pronunciation of the words, and you can also mark the words as "learnt" for future revision. The widget can be set to display words at specific intervals, and you have the option to practice purely random words or only those words that start with certain letters.

Additionally, WordStock allows you to search for synonyms and antonyms, and you can easily access the meaning of the word through Google search or web dictionary. The app has a clean and simple user interface, and the best part is that it is completely ad-free.

Overall, WordStock is a great tool for anyone looking to improve their vocabulary in a fun and easy way. It is available for free on the Google Play Store for Android devices.