noun

• The process of keeping (something or someone) safe.
• The state of being safe.
• A means of keeping or remaining safe.
• A means, such as a condom, of preventing pregnancy or sexually transmitted disease.
• (insurance) Coverage.
• Immunity from harm, obtained by illegal payments, as bribery or extortion.
• (obsolete) A document serving as a guarantee against harm or interference; a passport.
• (economics) Restrictions on foreign competitors which limit their ability to compete with domestic producers of goods or services.
• (computing) An instance of a security token associated with a resource (such as a file).