Synonyms of security

security

noun

si-ˈkyu̇r-ə-tē 

1

as in defense

means or method of defending

measures taken to beef up our national security

Synonyms & Similar Words

• defense
• protection
• ammunition
• safeguard
• shield
• wall
• weapon
• guard
• screen
• armor
• ward
• armament
• cover
• aegis
• weaponry
• munitions
• buckler
• fortress
• stronghold
• arm
• fort
• palisade
• fastness

Antonyms & Near Antonyms

• attack
• assault
• offense
• aggression
• offensive

2

as in guarantee

something given or held to assure that the giver will keep a promise

their house will serve as security for the loan

Synonyms & Similar Words

• guarantee
• pledge
• promise
• assurance
• guaranty
• gage
• pawn
• deposit
• bond
• bail
• down payment
• contract
• warranty
• surety
• commitment
• oath
• earnest
• covenant
• compact
• recognizance
• word
• handsel
• troth

3

as in safety

the state of not being exposed to danger

after the burglaries, police presence in the neighborhood was enhanced to give residents a stronger sense of security

Synonyms & Similar Words

• safety
• protection
• defense
• safeness
• shelter
• refuge
• shield
• guardianship
• safeguard
• asylum
• screen
• ward
• guard
• aegis
• retreat
• inviolability
• harbor
• invulnerability
• cover
• invincibility
• haven
• impregnability
• invincibleness
• impregnableness
• inviolableness
• invulnerableness

Antonyms & Near Antonyms

• danger
• risk
• threat
• trouble
• distress
• jeopardy
• peril
• hazard
• instability
• endangerment
• precariousness
• vulnerability
• imperilment
• liability
• exposure
• openness
• susceptibility
• harm's way
• violability
• vulnerableness
• susceptibleness

Example Sentences

Recent Examples of security

The border crisis boiled over Thursday and continued Friday with security forces clashing with migrants on the Moroccan side of the border. — Yuliya Talmazan, NBC news, 31 July 2026

On Thursday night, the 2x Grammy winner briefly paused her performance to check on fans near the stage who were losing consciousness, calling security over to help them, according to multiple outlets. — Glenn Garner, Deadline, 31 July 2026

Op-Fortitude and Simon Afram, the financier and filmmaker who paid $45 million to get the movie made, think Netflix failed to take basic security measures to prevent the unencrypted drive from being stolen. — Ashley Belanger, ArsTechnica, 31 July 2026

Given the journal’s prominence, Kashin’s piece was almost certainly previewed and green-lighted by officials in the Kremlin, likely as a way of giving voice to the pragmatists in the Russian security establishment. — Alexander Gabuev, Foreign Affairs, 31 July 2026