zipline /ˈzɪpˌlaɪn/noun 2verb 1forms 3 noun2 •A pulley suspended on a cable mounted on an incline, designed to enable a user to travel from one point to another by means of gravity. •A trip on a zipline. verb1 •To move or travel by zipline.He shrugs, too, when commandos zipline or jetpack into his line of vision, trading fire across busy intersections. — 2021 formsziplined · ziplining · ziplines