Dictionary and Thesaurus

Definition of Floodgate

• (noun) regulator consisting of a valve or gate that controls the rate of water flow through a sluice
• (noun) something that restrains a flood or outpouring; "suspension of surveillance opened the floodgates to illegal immigrants"

Synonyms of Floodgate

• Sluicegate
• Sluice Valve
• Penstock
• Head Gate
• Water Gate

Antonyms of Floodgate

Homophones of Floodgate