noun

security

sih-KYOOR-uh-tee/sɪˈkjʊrəti/

Protection against loss or harm.

The controlled gate and card check provide security at the office entrance.

A security guard checks a plain access card at a secure office entrance with a controlled gate, protection against unauthorized access, no lettering.

Etymology

seLatinwithout, apart

+curLatincare, concern

+ityLatinstate or condition

Security expresses a condition of being 'without care,' linking freedom from anxiety with safety from harm. It also came to mean something that makes a person or thing safe, yielding the protective sense.

In context

U.S. Naval War College115:14

protected indicators signaled the ability to trust and trust plays a prominent role in network security systems which depend on forming trust relationships between parties

Disruptive Technologies in International Law: Day Two of Three

More examples

We install new locks for added security.
A steady income gives our family financial security.
The bank accepts her house as security for the loan.

Forms

security

secure adjective — Protected against danger, loss, or unauthorized access.

Similar words

protection: Emphasizes active steps taken to prevent harm or loss.
safety: Emphasizes freedom from danger rather than measures providing protection.
collateral: Specifically means property pledged to guarantee repayment of a debt.