| Idiom | Meaning | Example | 
| run up | 
drive to, go to, travel to
 | 
I have to run up to Edmonton tomorrow. Do you want to come?
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| run up | 
increase, add to a total, charge it
 | 
Ming lets us run up a bill if we pay it once a month.
 | 
| run you out | 
force you to leave, the bum's rush
 | 
If they find drugs in your room they'll run you out of the hotel.
 | 
| run you ragged | 
make you feel tired, wear you out
 | 
Grade 8 students use up all your energy. They run you ragged.
 | 
| runaround | 
(See the runaround)
 | 
 | 
| running water | 
tap water, water from a pressure system
 | 
At the cabin in the woods we don't have running water.
 | 
| runt of the litter | 
(See  the runt of the litter)
 | 
 | 
| rush | 
(See what a rush)
 | 
 | 
| rush hour | 
the hour of heavy traffic, bumper to bumper
 | 
During rush hour, many drivers become impatient and angry.
 | 
| rust out | 
become rusty, be ruined by rust
 | 
Nobody wants that car because it's all rusted out.
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