run out (Verb) — Become used up; be exhausted. ex. "Our supplies finally ran out"
run out (Verb) — Flow off gradually. ex. "The rain water runs out into this big vat"
run out (Verb) — Leave suddenly and as if in a hurry. ex. "When she started to tell silly stories, I ran out"
run out (Verb) — Lose validity. ex. "My passports ran out last month"
run out (Verb) — Flow, run or fall out and become lost.
run out (Verb) — Exhaust the supply of. ex. "We ran out of time just as the discussion was getting interesting"
run out (Verb) — Prove insufficient. ex. "The water supply for the town ran out after a long drought"
run out (Verb) — Use up all one's strength and energy and stop working.