offboard verb 2noun 1forms 3 verb2 •To alight, especially from public transit or an aircraft. •(figurative) To prepare someone's departure from a group.It's easiest to onboard and offboard employees if you have a checklist to follow. — 2022 noun1 •A feed, video, image, etc., taken of a vehicle's situation, from a position that is not on the vehicle. formsoffboarded · offboarding · offboards