Are there any Greek-dictionary websites? I used to use a thick dictionary in a South Bay library, but I don’t live in that are now…
Modern Greek or ancient Greek?
English-Greek and Greek-English dictionary: ΛΕΞΙΚΌ - LEXICON: Greek-English-Greek dictionary
A very good Greek-Greek dictionary: http://www.komvos.edu.gr/dictionaries/dictonline/DictOnLineTri.htm
Evkharistó. 
Go to http://www.yourdictionary.com/languages.html and click “Greek.”
Links to Liddell and Scott classical Greek lexicons on this page: Greek and Roman Materials
Thanks to all. And–I forgot to answer a question posed-- :o Yes, I meant classical Greek rather than modern.