definition activate
activate verb [T]. âº to make something âstart âworking or âhappening: New âcustomers must âcall an âautomated âline to activate their âcard. The âmove will activate a âclause in the âcontract which gives the âcompany the âoption to âsell or âdemand the âoutstanding Â£3.5m âowed on the âdeal. (Definition of activate from the Cambridge Business English Dictionary Â© Cambridge University Press).