abstract
barrage
beautiful
bright
bubble
cascade
cataract
cold
dam
detail
dike
drainage
embankment
emergency
energy
fall
flood
flow
fresh
irrigation
landscape
light
loud
motion
move
nature
outdoor
overflow
power
rapids
reservoir
river
service
side
spillway
spiral
sponge
stream
strong
texture
tide
tunnel
twirl
twist
uncontrolled
water
waterfall
weir
wet
white