security
Trung cấp 1 · B1- national/homeland security (= the defence of a country)
- airport security officers
- security against something The bars are to provide security against break-ins.
- They carried out security checks at the airport.
- Passwords are a very important security measure.
- The visit took place amidst tight security (= the use of many police officers).
- the security forces/services (= the police, army, etc.)
- a high/maximum security prison (= for dangerous criminals)
- a security alert/threat/situation
- a security adviser/expert
- The criminals were caught (= filmed) on a security video.
- to tighten/improve/enhance security
- The team abandoned its tour due to security concerns.
- The two countries agreed to work together to strengthen border security.
- We will protect our national security.
- Before I can answer your question I have to take you through security (= ask some questions to check a person's identity).
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