The Dictionary is a vital for self-studying. Would you please suggest me some valuable dictionary softs for Ancient Greek, of course, they should be free for downloading. I hope they have all functions like the Latin Dict of William Whitaker as below link:
Logeion, which includes about all major Greek (and Latin) dictionnaries that are already out of copyright, including LSJ, Middle Liddell, Authenrieth: http://logeion.uchicago.edu