security
Security (noun) means the state of being safe from danger, harm, or threat. Example: “Airport security has tightened significantly in recent years.”
How to use security
Learner’s notesIn plain EnglishSafety and protection — or, in finance, a tradeable asset like a share or bond.
Word forms
securities plural
Fill the gap
Can you complete this real example?
Airport _____ has tightened significantly in recent years.
Etymology
From Latin securitas, "freedom from care," built from the same root as secure — se- ("without") + cura ("care").
Synonyms
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Related words
Rhymes for security
See all rhymes for security →Frequently asked questions
What does “security” mean?
The word “security” means the state of being safe from danger, harm, or threat. In plain terms, safety and protection — or, in finance, a tradeable asset like a share or bond.
How do you pronounce “security”?
“Security” is pronounced sih-KYOOR-rih-tee (/səˈkjʊɹ.ɪti/ in IPA).
How do you use “security” in a sentence?
Here is “security” used in a sentence: “Airport security has tightened significantly in recent years.”
What is the opposite of “security”?
The opposite of “security” — its antonyms — is insecurity.
What part of speech is “security”?
“Security” is a noun.
Where does the word “security” come from?
The word “security” comes from Latin. From Latin securitas, "freedom from care," built from the same root as secure — se- ("without") + cura ("care").
Is “security” a common word?
“Security” is a very common word in modern English, usually learned at around the B1 level.
How many meanings does “security” have?
“Security” has 4 distinct senses listed in this dictionary. The most common is: the state of being safe from danger, harm, or threat.
What is the difference between security and safety?
Safety is about being protected from accidents and unintended harm — a safe ladder, a safe road. Security is about protection from deliberate threats such as theft, attack, or intrusion. A locked door provides security against burglars; a handrail provides safety against falls. One guards against intent, the other against accident.
What are the types of security?
Security takes many forms: physical security guards buildings and people, cybersecurity protects data and computers, national security defends a country, and financial security means having enough money to feel safe. Job security, food security, and personal security are further examples. Each applies the same idea — safety from a specific threat.
Why is security important?
Security lets people live, work, and trade without constant fear of harm or loss. It protects lives, property, information, and rights, and it provides the stability needed to plan for the future. Whether physical, financial, or digital, security removes threats so that everyday life can carry on with confidence.
What is the opposite of security?
The main opposites are insecurity, danger, and vulnerability — all describing exposure to harm or threat. Where security means being safe and protected, these words point to risk, instability, and the lack of protection. Insecurity also covers the uneasy feeling that comes from not feeling safe.
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