tung4 coeng4 tit3 bik1銅牆鐵壁铜墙铁壁
Jyutpingtung4 coeng4 tit3 bik1
Yaletùhng chèuhng tit bīk
Definition
An impregnable fortress; an extremely secure defense.
neutraldescriptions
How it's used
Often used metaphorically to describe security systems, firewalls, or even a person's stubborn refusal to change their mind. It conveys a sense of absolute impenetrability that goes beyond simple physical strength. While it sounds slightly dramatic, it is common in news reports or when describing high-level security measures.
Examples
Their defense system is practically an impregnable fortress.
Related words
Common phrases
defending like an impregnable fortress
Common mistake
Avoid using this to describe physical objects that are just hard or durable, like a thick wooden door. It specifically implies a defensive barrier that is impossible to overcome or bypass.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- LocationHow to say where something is using 喺 (hai2), place words like 度, and the common coverbs that work like English prepositions.
- Serial verbsStringing two or more verbs together without any joining word, like go to the shop buy things. Extremely common in Cantonese.
- 將 disposalHow to move the object in front of the verb with 將, to focus on what happens to it. Common in instructions and writing.
