house_of_cards has definitions from the field of cards
1
[ noun ] a speculative scheme that depends on unstable factors that the planner cannot control

Synonyms

bubble

Examples

"his proposal was nothing but a house of cards" "a real estate bubble"

Related terms

scheme

2
[ noun ] (cards) an unstable construction with playing cards

Examples

"he built three levels of his cardcastle before it collapsed"

Related terms

structure

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