boiling, chilled, cold, cool, freezing, frigid (AmE), hot, ice-cold, icy, lukewarm, steaming, tepid, warm
I could feel the icy water entering my lungs.

ice (AmE), iced (esp. BrE)
clean, clear, crystal-clear, pure
dirty
contaminated, polluted
fresh
brackish, salt
These fish will quickly die in salt water.

salty
Abscesses should be bathed in warm salty water.

salted
Cook the pasta in plenty of boiling salted water.

soapy
Alexis filled the sink with soapy water.

hard, soft
dripping, flowing, pouring, running, rushing
the fast-flowing water of the river
All the rooms have hot and cold running water.

lake, ocean (esp. AmE), river, sea
surface
The surface water made the road treacherous for drivers.

ground
areas which are dependent on ground water

drinking, potable (esp. AmE)
tap
Avoid drinking the tap water when you first arrive in the country.

well
the purest well water

bottled, mineral, sparkling, spring
soda
flavoured/flavored
boiled, distilled, filtered, sterile
deionized
waste
irrigation
The farmers draw their irrigation water from the Colorado.

excess
She dried off the excess water from her hair.

holy
He kept sprinkling holy water on Mia.

scarce

drop
drink, sip
cup, glass

drink, sip
gulp, gulp down
pour
slosh, spill, splash, spray, sprinkle, spurt, squirt
Don't slosh too much water on the floor when you're having a bath.
The burst pipe was spurting water everywhere.

filter, purify
contaminate, pollute
boil, heat
Residents are being asked to boil their drinking water.

bring, carry, fetch
a woman fetching water

pump
How do you pump the water up here?

drain
He twisted it to drain the excess water.

absorb
That causes the moss to absorb water.

turn off, turn on
They turned the water off for a few hours to do some work on the pipes.

flow, pour, run
gush, rush, spurt
Brown water gushed out of the rusty old tap.

drip, trickle
There was water dripping from a hole in the ceiling.

lap, slosh, spill, splash, spray, squirt
Water got into the boat and was sloshing around under our feet.

boil, cool, cool down, freeze
evaporate
As the weather heats up, water evaporates.

vapour/vapor
temperature
pressure
supply
resources
quality
purification, treatment
filter
pipe
tank, tower
pump
pollution
shortage
level
table
Building can be difficult where the water table lies close to the surface.

source
the region's most important fresh water source

power
company, industry
conservation, management (esp. AmE)
bottle
cooler (esp. AmE), fountain (both esp. AmE)
heater (esp. AmE)
household water heaters

deep, shallow
clear
muddy, murky, stagnant
calm, placid (esp. BrE), still
the calm waters of Lake Como

choppy, rough, stormy
dangerous, safe
At last the boat reached safer waters.

open
large expanses of open water

flood (usually floodwater)
The floodwater had caused tremendous damage.

standing
Some fields have areas with standing water.

rising
They climbed a tree to escape the rising water.

bath, bathing (esp. BrE)
ballast
the ballast water of ocean-going freighters

rise
The water was rising fast.

recede
The water is now receding after the floods.

sports

by water
Goods were often transported by water in the 19th century.

in the water
I saw something large floating in the water.

on the water
The swan landed gracefully on the water.

through the water
The boat cut effortlessly through the water.

under the water
An abandoned town lies under the water of the reservoir.

the water's edge
She crouched at the water's edge to wash her hands.

territorial
coastal
tropical
northern, southern
Antarctic, Arctic
Atlantic, Pacific, etc.
foreign, home, international
Japanese, etc.
uncharted
The ship had drifted into uncharted waters.

navigable
inland navigable waters

freezing, icy
the freezing waters of the Irish Sea
the icy waters of the North Atlantic

shark-infested
the shark-infested waters off the coast of Florida

in … water, into … water
The submarine had strayed into Russian waters.