cybersynagogue UK /ˌsaɪbəˈsɪnəɡɒɡ/US /ˌsaɪbəɹˈsɪnəˌɡɑɡ/ noun1 •(Internet, Judaism) A synagogue that exists only in cyberspace or on the Internet.Our cybersynagogue will soon be in the World Wide Web – surfing the Jewish world looking forward to the next 150 years. — 2000 formscybersynagogues