deboard in English dictionary deboard Meanings and definitions of "deboard" To exit a form of transportation such as a boat, ship, airplane, trolley, streetcar or spaceship. verb To exit a form of transportation such as a boat, ship, airplane, trolley, streetcar or spaceship. more Grammar and declension of deboard deboard ( third-person singular simple present deboards, present participle deboarding, simple past and past participle deboarded) deboard (third-person singular simple present deboards, present participle deboarding, simple past and past participle deboarded) more Images with "deboard" Sample sentences with "deboard" Declension Stem Try again Available translations Finnish Authors