Dictionary definition · run out
verb
- become used up; be exhausted"Our supplies finally ran out"
- flow off gradually"The rain water drains into this big vat"
- leave suddenly and as if in a hurry"The listeners bolted when he discussed his strange ideas"
- lose validity"My passports expired last month"
- flow, run or fall out and become lost"The milk spilled across the floor"
- exhaust the supply of"We ran out of time just as the discussion was getting interesting"
- prove insufficient"The water supply for the town failed after a long drought"
- use up all one's strength and energy and stop working"At the end of the march, I pooped out"
Source: Open English WordNet (CC BY 4.0).