Definition of Security
Quick Meaning of Security
The state of being safe and protected from harm.
Detailed Definition of Security
Protection from danger or loss; a feeling of safety.
How to Pronounce Security
Stress pattern: oOos (4-syllable word).
Tip: Stress second syllable: se-CUR-i-ty.
Origin and Etymology of Security
From Latin securitas, derived from securus.
How to Use Security in a Sentence
Each example shows “security” with a CEFR level so learners can pick examples that match their fluency.
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“Airport security checked our bags carefully.”
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“Families need financial security for the future.”
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“The password protects your account security.”
Synonyms and Antonyms of Security
Common Synonyms for Security
Smart Synonyms for Security — When to Use Each
- safety
- the condition of being protected from danger
- protection
- measures taken to keep something safe
- surveillance
- careful monitoring for security purposes
Common Collocations with Security
These phrases pair with “security” in everyday English:
- national security
- social security
- security guard
- data security
- home security
Common Mistakes When Using Security
Even fluent speakers slip up with “security”. Here’s how to avoid the most common errors:
- ✗ Wrong: The securities is important.
- ✓ Correct: Security is important.
- Why: Use singular 'security' for the concept; plural for financial instruments.
- ✗ Wrong: We need more securities.
- ✓ Correct: We need more security measures.
- Why: The uncountable noun 'security' needs a noun like 'measures'.
Other Forms of Security
Frequently Asked Questions About Security
What is the meaning of "Security"?
The state of being safe and protected from harm.
How do you pronounce "Security"?
The IPA is /sɪˈkjʊrətɪ/. Stress second syllable: se-CUR-i-ty.
What part of speech is "Security"?
"Security" is a noun at B1 level (Common European Framework).
What are synonyms for "Security"?
Common synonyms include safety, protection, safety precautions.
How do you use "Security" in a sentence?
For example: "Airport security checked our bags carefully."