Lexipedia provides word lists for different languages, extracted from Wikipedia articles. Each word in the list has three corresponding values: overall frequency of occurrence within Wikipedia, the number of articles where this word appears, and word length.
Frequency lists can be used for educational, statistical or lexicographical purposes. One can also use these lists for keyword extraction, for example using TF-IDF(term frequency–inverse document frequency) algorithm.
You can download word lists here: