rideshare noun 2verb 2forms 3 noun2 •A ridesharing arrangement in which people travel together.The neighbors decided on a rideshare to get their kids to school, so that they wouldn't each have to drive every day. •A taxi or minicab hired through a ridesharing app.He took an Uber rideshare to the other side of town. — 2022 verb2 •To participate in ridesharing. •To work or gig as a rideshare driver. formsrideshared · ridesharing · rideshares