Meaning of the word "house of cards" in English

What does "house of cards" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

house of cards

US /ˌhaʊs əv ˈkɑːrdz/
UK /ˌhaʊs əv ˈkɑːdz/
"house of cards" picture

Idiom

a plan or organization that is very weak and can easily be destroyed

Example:
Their entire business model was a house of cards, collapsing at the first sign of trouble.
The government's new policy proved to be a house of cards, quickly falling apart under public scrutiny.