Fortress

/ˈfɔːrtrəs/

nounmedium📊CommonLegal
1 meaning1 idiom/phrase2 questions

Definitions

1

A strongly fortified place; a stronghold.

/ˈfɔːrtrəs/

nounneutralmedium
Legal

A large, strong building or structure used for defense or protection.

The city's ancient walls acted as a formidable fortress against invaders.

💡 Simply: Imagine a big, tough building like a castle. A fortress is that strong, safe place that's built to keep enemies out. Think of it as a really, really strong house that's meant to protect people.

👶 For kids: A fortress is a super strong building, like a castle, that keeps people safe.

More Examples

2

The rebels retreated to their mountain fortress, hoping to hold out.

3

The company built its new headquarters to be a fortress against hostile takeovers.

How It's Used

Military

"The castle served as an impenetrable fortress during the siege."

Literary

"Her heart was a fortress, guarded by walls of silence and solitude."

Synonyms & Antonyms

Idioms & expressions

mental fortress

A state of emotional resilience and self-protection.

"She built a mental fortress against the criticisms of her peers."

From Old French *fortresse* (12th century), from Latin *fortis* (“strong, brave”). It developed from places that were literally strong, i.e., fortified.

Used frequently in medieval times to describe castles and fortified cities. Often used to create a sense of security and power. The term continues to be used in more metaphorical ways.

Memory tip

Think of a strong *fort* (as in, a military post) with lots of *resists* (that's why there is an *ress*).

Word Origin

LanguageLatin
Original meaning

"strong, brave"

mountain fortressancient fortressimpenetrable fortressstrong fortresscoastal fortress

Common misspellings

fortresfortriceforthress

Usage

30%Spoken
70%Written