security
B1Pronunciation
UK
- /sɪkjˈɔːrɪti/
US
- /sɪkˈjʊrəti/
Meanings
Noun
the state of being safe or protected from danger, attack, or loss
protective measures, checkpoints, guards, or systems used to keep people and places safe
the protection of computer systems, accounts, networks, or data against unauthorized access or attack
More meaningsFewer meanings
a tradable financial asset such as a stock, bond, or similar investment instrument
Beyond the definition
Security is not just about locks on doors and alarms going off, though those certainly help. It is the state of being safe and protected from harm, loss, or worry. You can see it in a secure home, in financial security when a person has enough money for life, or in job security when work feels stable. It also appears in the digital world, where passwords and other tools help protect private information. In everyday life, the word often points to the sense that people, places, plans, or information are being kept safe.
Security encompasses the state of being free from danger or threat. It's a fundamental human need—we all crave it in some form. While often associated with physical safety—like having secure borders, locked doors, or protective measures against attack—security extends far beyond that.
Financial security refers to having enough money and resources to meet your needs comfortably. Job security means feeling confident about the stability of your employment. National security involves protecting a country from external threats like war or terrorism. Emotional security is the ability to feel safe and accepted in relationships, free from the fear of rejection or abandonment.
The word "security" can also refer to systems and measures that provide protection. A home security system, cybersecurity rules, airport security, or social security programs all fit this use. People often add security by installing cameras, using insurance, hiring guards, or setting clear rules that lower risk and bring peace of mind.
Think about the story of Little Red Riding Hood—she lacked security on her journey through the woods, which made her vulnerable to the wolf. Conversely, a well-guarded castle represents strong security.
So whether it's physical protection, financial stability, emotional well-being, or systems designed for safety—security is about creating a state of freedom from fear, harm, and uncertainty. It is a cornerstone of a stable and thriving life.
Examples
- 1
Airport screening
We had to go through security before boarding the plane.
- 2
Building staff
If the customer becomes aggressive again, call security.
- Phrasecall security
ask the building's security staff to come
- 3
Visitor rules
For security reasons, all visitors have to wear a badge.
- Phrasefor security reasons
because of safety or protection rules
- 4
Online accounts
Use a strong password to improve the security of your online accounts.
More examplesFewer examples
- 5
Public event
The actor arrived with heavy security at the film premiere.
- Phraseheavy security
many guards and strong protection
- 6
Employment
Many workers are worried about job security this year.
- Phrasejob security
confidence that you will keep your job
- 7
Money
After years of saving, they finally had some financial security.
- 8
Government
The documents were not released because they involved national security.
- 9
Feeling safe
Having a trusted friend nearby gave her a sense of security.
- Phrasea sense of security
a feeling of being safe
See also
Similar
Shades of meaning
Contrast
Do not confuse
Used with (collocations)
- national security
- home security
- security guard
- security breach
Word family
Explore
- cybersecurity
- risk management
Forms and spellings
2 forms open this card.
Main spelling
- securitynoun
Forms
- securitiespluralnoun