regen /ɹiˈdʒɛn/noun 4verb 1forms 5 noun4 •A regenerative radio receiver. •(informal) Clipping of regeneration.The council announced a new project for the urban regen of the waterfront area.After the fire, the community focused on the regen of local businesses. •Clipping of regenerative braking. •A kind of yo-yo trick that adds spin without having to return the yo-yo to the thrower's hand. verb1 •(informal) Clipping of regenerate. formsregened · regenned · regening · regenning · regens