The meaning of run low is: insufficient, shortage, lack, about to run out, almost exhausted
Take a look at the classic example sentences:
Food supplies began to run low.
I'm running out of food.
What happens when food and petrol supplies run low?
What happens when supplies such as food and gasoline run low?
And when his batteries run low, he behaves like an amusing drunk.
When his battery dies, he acts like a funny drunk.
Some parts of the United States have begun to run low on water.
Some parts of the U.S. are already starting to face water scarcity.
I'm ordering office supplies. Is there anything that you're running low on?
I'm ordering office supplies. Do you have anything you need to replenish when you're running out of stuff?
We had to return to camp because our food supply was running low.
We had to go back to camp because we were running out of food.
Food stocks are running low.
The stored food is almost finished.
Supplies are running low.
The supply of materials is gradually insufficient.
We are running low on drinking water.
We don't have enough drinking water.
We are running low on food.
Food supplies are tight right now.
Stocks of ammunition were running low.
Ammunition stocks are running low.
We broke off the action because our ammunition was running low.
We stopped fighting because we were running out of ammunition.
Note: The meaning of run down is: used up, exhausted, reduced, bumped into, listed in detail, detailed introduction
The battery has run down.
The battery ran out.
Run down a car/battery.
Refers to the gradual reduction or depletion of energy in a vehicle or battery.
Run down one's energy/health.
Draining someone's energy or harming someone's health.
Its$ 25m reserve fund had been run down to around$ 8m.
Its reserves of $25 million have been reduced to about $8 million.
The property business could be sold or run down.
Real estate business can be sold or cut.
Before the presentation, I’ll run down the main points we want to cover.
Before the presentation, I make a list of the main points we want to cover.