Definition: Given the Question and Answer pair, detect whether the answer is acceptable or not. Denote acceptable answer as "yes", otherwise denote as "no". An acceptable answer is consistent with the context in question, detailed, long, and uses general knowledge of English. Answers that are not definite and suggest a variety of options are not acceptable answers.
Input: Question: I am looking for a list of all English words that are their own antonyms. Off the top of my head, I can only think of "either", "fast", "to dust" and "to lease", but there must be dozens more. Can you provide a link to a comprehensive list, if such exists? Also, what are such words most commonly called? I like the term "Janus word" I once heard, but is that widely understood? Edited by popular demand to make it absolutely clear that this is not a community wiki poll. 
Answer: I think you're referring to Auto-antonyms. They are not the same word but a homograph (a word of the same spelling) that is also an antonym. I guess, Janus word is also acceptable. There was a list on Wikipedia (List of Auto-antonyms in English), since moved to Wiktionary's Appendix of English contranyms.

yes