অর্থ : (of businesses and businessmen) untrustworthy or undependable.
							উদাহরণ : 
							A fly-by-night operation.
							
অর্থ : Ephemeral.
							উদাহরণ : 
							The symphony is no fly-by-night venture.
							
Fly-by-night ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Fly-by-night ka matlab kya hota hai?