runs, ran, run, running
to run down
phrasal verbC
To lose power or energy, especially for batteries or machines
- 1The battery will run down if you leave the flashlight on.
- 2My phone has run down after a day of heavy use.
When something runs down, it means it is losing its power or energy. This often happens to batteries or machines when they are used for a long time and start to become weaker. It's like when a car runs out of gas and stops working.
Remember to recharge your phone before it runs down completely to prolong its battery life. It's like giving it a little break to stay healthy and last longer.
at a service station
Battery Trouble
Lisa
Hey Kenneth, my car won't start after the wash.
Kenneth
It sounds like your battery might have run down.
Lisa
Oh no, I should have checked it earlier.
Kenneth
No worries, we can jump-start it and get you going.
in an ambulance
Unexpected Power Loss
Sharon
Richard, the defibrillator is not working!
Richard
Oh no, the battery must have run down.
Sharon
We need to switch to the backup unit immediately.
Richard
I'll grab it from the storage compartment right away.
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Similar to "to run down":
- 1deplete
- 2drain