Preposition: of

• tenure: Security of tenure is worth a lot these days. In time of ill-health a teacher can receive full pay for six months.

Converse of object

• enhance: ComStation can enhance security by password protecting " ftp " folders on the web server.

• compromise: No hardware or software may be used which compromises the security of the network or the privacy of users.

• ensure: What measures are in place to ensure the security of the Mutual's reinsurers?

• improve: CCTV New cameras at bus stops to improve security.

Adjective modifier

• national: Warrants renewed on national security / economic well-being grounds are valid for a further period of six months.

• added: Count on the AMD Athlon 64 processor for added security.

• social: She has also been at the forefront of pushing for equal entitlement to social security for non-EU workers.

Modifies a noun

• guard: Four security guards were ordered to stay inside the offices to ensure we caused no damage.

• measure: Bristol International Airport had a successful season during the World Cup, with security measures limiting the amount of recorded crime.

• force: Saturday 4th March I've decided to implement the new security force beam generators next.

• threat: Many congregations over the years have become fearful that leaving doors open presents a security threat.

• breach: The Manchester Evening News reports a security breach with its online booking system which allows the printing of tickets.

• assurance: US officials have reportedly not decided at what point security assurances would be offered to North Korea.

Noun used with modifier

• homeland: He will soon be leaving his position as secretary of homeland security.

• cyber: I appreciate the opportunity to testify today on cyber security.

• food: The Sahel has been affected by food security problems for several decades.

• airport: The new system provides x-ray images that allow airport security operators to look behind objects.

• computer: PDF document for our safes - Read all about our laptop safes, the perfect computer security case.

• network: Network security All machines should run an up-to-date version of the operating system.