downpipe

noun 0.746

spout

noun 0.677

guttering

noun 0.662

gutter

noun 0.645

drainpipe

noun 0.632

waterspout

noun 0.623

spillway

noun 0.618

spouting

noun 0.617

downpour

noun 0.612

scupper

noun 0.610

drip edge

noun 0.596

drainage pipe

noun 0.595

spigot

noun 0.585

storm sewer

noun 0.573

drain

noun 0.570

downdraft

noun 0.566

sump pump

noun 0.566

soil pipe

noun 0.566

downslope

noun 0.556

runoff

noun 0.554

waste pipe

noun 0.552

spitter

noun 0.551

surface runoff

noun 0.550

downcomer

noun 0.550

soakaway

noun 0.544

outfall

noun 0.544

tailpiece

noun 0.542

spile

noun 0.541

penstock

noun 0.540

sprinkler

noun 0.537

spruit

noun 0.535

drainer

noun 0.534

raindrop

noun 0.533

plughole

noun 0.533

siphon

noun 0.532

sump

noun 0.531

drip

noun 0.531

hosepipe

noun 0.531

sprinkler head

noun 0.530

spittoon

noun 0.529

water butt

noun 0.529

drainage

noun 0.524

outflow

noun 0.521

faucet

noun 0.521

culvert

noun 0.521

nozzle

noun 0.520

spewing

noun 0.519

flue pipe

noun 0.519

rainwater

noun 0.518

chute

noun 0.518

standpipe

noun 0.517

downsloping

noun 0.516

spitting

noun 0.516

dropdown

noun 0.515

spew

noun 0.515

drainboard

noun 0.514

fire sprinkler

noun 0.513

spurt

noun 0.512

spool

noun 0.512

sluice

noun 0.511

droplet

noun 0.509

dropper

noun 0.508

spittle

noun 0.508

surface discharge

noun 0.508

tailpipe

noun 0.507

down

noun 0.507

dripping

noun 0.505

water pipe

noun 0.505

pouring

noun 0.504

down tube

noun 0.504

showerhead

noun 0.503

exhaust pipe

noun 0.503

spire

noun 0.503

spill

noun 0.503

pipe roll

noun 0.502

throughfall

noun 0.502

spit

noun 0.501

sprout

noun 0.501

guttersnipe

noun 0.501

catchment basin

noun 0.500