1. adjective (typically hyphenated and used before a noun) Of, covering, or limited to only a short or immediate period of time. This sort of short-run planning is fine while the company is being set up, but you need to start setting some long-term goals and strategies.

2. noun A short length of time; an immediate or limited period in which to act or effect change. Congress approved funding to cover the country's debt for the short run, but a more permanent solution will have to be reached before the December 31 deadline. This minimum wage increase may have a negative effects on businesses in the short run, but they will be dwarfed by the benefits down the line.