/prəˈvaɪzəʊ ||; prəˈvaɪzo/noun [C] (plural provisos) a condition that must be accepted before an agreement can be made （达成协议前必须接受的）条件: He agreed to the visit with the proviso that they should stay no longer than a week. 他同意来访，条件是他们逗留的时间不得超过一个星期。