Longman Dictionary Pro of Contemporary English app for iPhone and iPad

Natural English
● 165,000 corpus-based examples of natural English show words in context and how English is really used.

Comprehensive
● 230,000 words, phrases, and meanings – more than any other learners dictionary.
Easy to use – easy to understand
● Definitions written using a vocabulary of just 2,000 words – the Longman Defining Vocabulary, ensuring all definitions are clear and easy to understand.

Expand your vocabulary
● Frequency information on the most common words – the new Longman Communication 9000 – helps you learn them first.
● Words from the Academic Word List highlighted to help you improve your essays and presentations.