total
It is impossible to measure the total supply of money in circulation.

available
endless, inexhaustible, infinite, limitless, never-ending, unending, unlimited
He has an endless supply of corny jokes.

abundant, bountiful, good, large, plentiful
adequate, ample, sufficient
excess
inadequate, limited, small
Hurry, as we only have a limited supply of these TVs in stock!

dwindling
constant, continuous, regular, steady
fresh
The body needs a fresh supply of vitamin C every day.

ready, reliable
a reliable supply of clean water to communities

domestic
air, blood, oxygen
A clot in the brain cut off her blood supply.

food, milk, water, etc.
coal, electricity, energy, fuel, gas, oil, power, etc.
Domestic coal supplies were more plentiful in the 1950s.
Turn off the mains electricity supply. (BrE)

mains (BrE)
labour/labor
The farmers depend on a casual labour/labor supply at harvest time.

money
the country's problems with inflation and money supply

have
Make sure you have an adequate supply of brochures.

get, lay in, obtain, receive
We should lay in a good supply of beer for the party.

produce, provide
The studio produced a steady supply of good movies.

ensure, maintain
cut off, disconnect, disrupt, stop
The electricity company disconnected our supply.
The storm disrupted the town's power supply.

deplete, exhaust, use, use up
By the end of the winter the supply of grain was severely depleted.

replenish, restock (esp. AmE), restore
increase
control, limit, reduce, restrict
exceed, outstrip
Demand for top-quality programmers exceeds supply, leading to extortionate salaries.

increase
fall
exceed demand, meet demand
Supply did not increase to meet demand.

chain, line, network
system
the water supply system

contract
closet, room (both AmE)
depot, store (esp. AmE)
I went to the office supply store.

convoy, ship, train
route

supply of
a supply of spare batteries

supply to
to maintain an adequate water supply to the city

be in short supply
Food is in short supply following the flooding.

demand and supply, supply and demand
laws of supply and demand

a fall in supply, a shortfall in supply
There will soon be a shortfall in the supply of qualified people.

an increase in supply

abundant, plentiful
limited, meagre/meager
vital
basic
emergency, humanitarian, relief
arms, food
The Red Cross flew emergency food supplies into the war zone.

medical, military
farm (esp. AmE), office, school (esp. AmE)
cleaning (esp. AmE)

bring, bring in, lay in, provide (sb/sth with)
The money raised will provide vital medical supplies to refugee camps.

deliver
be out of, be short of
run out of, run short of
threaten
Rebel action threatened relief supplies.

buy
gather

hold out, last
be depleted, be exhausted, run out
dwindle, run low, run short

supply of
The injured climbers had only meagre/meager supplies of water and peanuts to live off.