Longman Dictionary of Contemporary English homepage

security

noun
     
Related topics: Loans
se‧cu‧ri‧ty W1
1

protection from danger

[uncountable] things that are done to keep a person, building, or country safe from danger or crimeCOLLOCATIONS COLLOCATIONS
strict/tight security (=careful security) lax security (=security that is not careful enough) national/state security (=the security of a country against its enemies) tighten security (=make security better) breach of security (=when something dangerous happens, in spite of security measures) for security reasons the security services/forces (=the police, army etc) security camera security check security measures/arrangements maximum security prison/jail
The trial was held under tight security.
lax security at airline check-in desks
terrorist activity that is a threat to national security
The prison was ordered to tighten security after a prisoner escaped yesterday.
The Security Commission investigates breaches of security.
We have been asked not to say anything for security reasons.
The security forces opened fire, killing two people.
The thief was caught on a security camera.
There are strict security checks on everyone entering the Opera House.
A large number of homes lack adequate security measures.
2

protection from bad situations

[uncountable] protection from bad things that could happen to you:
Parenting is about giving your child security and love.
Workers want greater job security (=not being in danger of losing your job).
This insurance plan offers your family financial security in the event of your death.
3

guards

[uncountable]BBC the department of a company or organization that deals with the protection of its buildings and equipment:
One of the sales clerks called security.
security guard
4

borrowing money

[uncountable]BFL something such as property that you promise to give someone if you cannot pay back money you have borrowed from them
security for
Reiss used his Brooklyn home as security for the loan.
5

securities

[plural]BFS stocks or shares in a company
WORD FOCUS: airport WORD FOCUS: airport
what you do at the airport:When you arrive at the airport, you go into the terminal building. You check in for your flight at the check-in desk. You show your passport at passport control and then go through security, where they check that you are not carrying any weapons. If you have time you can wait for your flight in the departure lounge. When your flight is called, you go through the departure gate in order to get onto the plane. The plane then takes off from the runway. After your plane has landed, you go to the baggage reclaim to collect your bags, then go through customs and immigration, where they check your passport and your bags. You then go out into the arrivals area.


See also
airport

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