ensure the safety(of); provide safety measures(for); belay(альпиниста); guaranty; back up(перен., напр., "Go ahead, I'll back you up!" – "Действуй, я тебя подстрахую!" Рина Грант); assure; cover(to protect • Are we covered by your car insurance); guarantee; secure; hedge bet(о ставках, вложениях, инвестициях; избегать неверного выбора MayLily); insure(to arrange for the payment of a sum of money in the event of the loss of (something) or accident or injury to (someone) • Is your car insured?; Employers have to insure employees against accident); guard against(предупреждать, защищать от чего-либо нежелательного)