The concept of maintaining peace among all nations or members of a group by making the security concerns of one member important to all members.

A branch of information security applied to both theoretical and actual computer systems and networks.

A person who is employed to provide security for people or property.

(securities industry) The lending of securities by one brokerage to another, typically for a secondary purpose such as to cover a stock short position. Not to be confused with collateral-type stock loans.

A region of the world in which large-scale use of violence, such as war, among nations is highly unlikely.

An amount of money paid in advance as security against the payor's non-performance of a contractual obligation.

plural of security guard

plural of security blanket

plural of security deposit

plural of security procedure