Meaning : Something that restrains a flood or outpouring.
Example :
Suspension of surveillance opened the floodgates to illegal immigrants.
Meaning : Regulator consisting of a valve or gate that controls the rate of water flow through a sluice.
Synonyms : head gate, penstock, sluice valve, sluicegate, water gate
Floodgate ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Floodgate ka matlab kya hota hai?