floodgate Definition

penstock, head gate, sluice valve, sluicegate, water gate, spillway, sluice, dam, flood, levee, drawbridge, weir, spigot, dike, door, sluiceway, drain, deluge, reservoir, culvert, overflow, gush, inflow, floodwater, manhole, floodwaters, backflow, gates, batardeau, unsluice, bridge, dredge, cofferdam, torrent, lockmaster, anicut, movable barrier, st. lawrence seaway, fishway, forebay, tidal wave, canal, sinkhole, seawall, valves, drainage basin, flow, funnel, brim over, seep, flume, outfall, landflood, breakwater, aboideau, loopholes, causeway, transom, unbarricade, drainpipe, fissure, ostiary, trickle, jetties, or circuit, stench trap, backdoor, atchafalaya, tributary, dykes, water gang, bypass, gate, diversion, loop, pedestrian bridge, bayou, crossings, waterway, silting, wicket gate, revetments, biforate, river, valvule, federalizing, chasm, quadrivalve, canalisation, sandbag, suspiral, exterior door, barrier, gaillard cut, barrages, reservior, bailey bridge, welland canal, mouths, frontiers,