DOUBLE-SEATER Meaning of DOUBLE-SEATER in English ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷ ̷ ̷ nounEtymology: double seat (from double (I) + seat ) + -er : two-seater Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012