Cambridge Business English Dictionary:

The Cambridge Business English Dictionary is ideal for business English students, business studies students and anyone using English in their work. Informed by the unique Cambridge English Corpus, the dictionary has over 35,000 words, phrases, and meanings, and includes business-specific vocabulary such as 'quantitative easing', 'crowdsourcing' and 'black knight'. It also includes help with how to use English naturally in business situations like meetings, conference calls, and emails. A mobile application is also available and sold separately.