meaning of security
Security means safety, as well as the measures taken to be safe or protected. In order to provide adequate security for the parade, town officials often hire extra guards. A small child will sometimes latch on to a blanket or stuffed animal that gives him or her the feeling of security. Often this word is used in compounds such as a security measure, security check or security guard. The security department in a business is sometimes just called security. If there's a troublesome customer at your work, call security to take him away. In the financial world, a stock or bond is also called a security.