floodgate
2 synonyms for floodgate, grouped by meaning and by how common each one is.
Noun — A gate that can be opened or closed to control water flowing through a channel.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
sluicegate
penstock
Etymology
Came from Middle English flodegate, flodgate, flodeyate, floodȝate, flodȝete, equivalent to flood plus gate.
Full origin of floodgate →