Noun

• S: (n) security (the state of being free from danger or injury) "we support the armed services in the name of national security"
• S: (n) security, protection (defense against financial failure; financial independence) "his pension gave him security in his old age"; "insurance provided protection against loss of wages due to illness"
• S: (n) security (freedom from anxiety or fear) "the watch dog gave her a feeling of security"
• S: (n) security, certificate (a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends) "he held several valuable securities"
• S: (n) security, surety (property that your creditor can claim in case you default on your obligation) "bankers are reluctant to lend without good security"
• S: (n) security, security department (a department responsible for the security of the institution's property and workers) "the head of security was a former policeman"
• direct hypernym / inherited hypernym / sister term
• S: (n) department, section (a specialized division of a large organization) "you'll find it in the hardware department"; "she got a job in the historical section of the Treasury"
• S: (n) division (an administrative unit in government or business)
• S: (n) administrative unit, administrative body (a unit with administrative responsibilities)
• S: (n) unit, social unit (an organization regarded as part of a larger social group) "the coach said the offensive unit did a good job"; "after the battle the soldier had trouble rejoining his unit"
• S: (n) organization, organisation (a group of people who work together)
• S: (n) social group (people sharing some social relation)
• S: (n) group, grouping (any number of entities (members) considered as a unit)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• S: (n) security, surety (a guarantee that an obligation will be met)
• S: (n) security system, security measure, security (an electrical device that sets off an alarm when someone tries to break in)
• S: (n) security, security measures (measures taken as a precaution against theft or espionage or sabotage etc.) "military security has been stepped up since the recent uprising"
• direct hypernym / inherited hypernym / sister term
• S: (n) precaution, safeguard, guard (a precautionary measure warding off impending danger or damage or injury etc.) "he put an ice pack on the injury as a precaution"; "an insurance policy is a good safeguard"; "we let our guard down"
• S: (n) backstop (a precaution in case of an emergency) "he acted as a backstop in case anything went wrong"
• S: (n) security, security measures (measures taken as a precaution against theft or espionage or sabotage etc.) "military security has been stepped up since the recent uprising"