Englishfor English speakers
security
Noun
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Security is safety.
Traditionally, Japanese workers have had good job security. In fact, they usually had a job for life.
Since the attack, many Americans have lost their feeling of security.
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Security is the people and things that keep you safe.
After the bombing, the airport increased security.
If you see a problem, please call security.
protocol
Noun
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A protocol is a set of rules that describes how data is transmitted.
To get the domain name from the domain name server, the other computer has to send the right protocol.