Each word is given with its full meanings, and put into context for easier understanding. Some words which have lots of uses have huge sections with plenty of examples so you don't get confused. Some commonly mixed up words, like 'por' and 'para' have an explanation of when each should be used.
Loads of usage examples, very accurate, and almost every word you could think of. I've said it once, but I'll say it again - don't buy any other Spanish dictionary. It's the best.