B2positioned or fixed firmly and correctly and therefore not likely to move, fall, or break: That ladder doesn't look very secure to me.Check that all windows and doors are secure.figurativeHer promotion has made her position in the company more secure.figurativeThe museum has been promised £22 million by the government, so its future is relatively secure.Safe and secure›A secure place is one that it is difficult to get out of or escape from: He killed the man just a month after his release from a secure mental hospital.Safe and secure