Academic Word List (AWL)
The Academic Word List (AWL) was developed by Averil Coxhead of Victoria University of Wellington, in New Zealand. The list is divided into 10 sublists of word families and contains 570 words selected because they appear with great frequency in a broad range of academic texts.
The sublists are ordered such that the words in the first sublist are the most frequent words and those in the last sublist are the least frequent. Wiktionary