Simple Definition of security
: the state of being protected or safe from harm
: things done to make people or places safe
: the area in a place (such as an airport) where people are checked to make sure they are not carrying weapons or other illegal materials
Full Definition of security
2a : something given, deposited, or pledged to make certain the fulfillment of an obligationb : surety
3 : an instrument of investment in the form of a document (as a stock certificate or bond) providing evidence of its ownership
Examples of security
We must insure our national security.
The college failed to provide adequate security on campus after dark.
There was a lapse in security and the inmates escaped.
We have to go through security at the airport.
We called security when we found the door open.
The meeting was held under tight security.
The prisoner was being kept under maximum security.
I like the security of knowing there will be someone there to help me when I need help.
Growing up in a close family gave her a sense of security.
First Known Use of security
Medical Definition of security
: freedom from fear or anxiety <need for security dates back into infancy—K. C. Garrison>
Learn More about security
Thesaurus: All synonyms and antonyms for "security" Medical Dictionary: Definition of "security" Spanish Central: Translation of "security" Nglish: Translation of "security" for Spanish speakers Britannica English: Translation of "security" for Arabic speakers Britannica.com: Encyclopedia article about "security"
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