WordNet (r) 3.0 (2006):
house of cards n 1: a speculative scheme that depends on unstable factors that the planner cannot control; "his proposal was nothing but a house of cards"; "a real estate bubble" [syn: house of cards, bubble] 2: an unstable construction with playing cards; "he built three levels of his cardcastle before it collapsed" [syn: house of cards, cardhouse, card-house, cardcastle]