A learning dictionary, this contains 56,000 words and phrases and 75,000 examples plus language notes to explain appropriate use of language and usage notes to aid word choice and grammatical understanding. American and British English is covered and pronunciation is also given.
For 22 years I worked as a translator and this dictionary was the main tool to understand the texts I got for translation. With its 2000 words vocabulary used in defining words, it becomes simpler the more you use it. You do not end up in endless chains of words you don't understand.
I found this to be the perfect support when trying to get my english to the next level as a foreign student in the UK. Good selection of synonyms. I particularly appreciated that. This would be a good choice.