Ⅰ.
run short (of sth)
► to have a low supply of something: »
Forecasting is crucial: you don't want to run short or have a warehouse of unsold product.
»The online travel site denies that it is running short of cash.
Main Entry: ↑run
Ⅱ.
run short
► if you run short of something, you have too little of it left: »
The bank has been plagued for months by speculation that it is running short of capital.
► if something runs short, there is little of it left: »
Time is for a deal to get done.
»In two months food will run short.
Main Entry: ↑short
Financial and business terms. 2012.