What is the meaning of run out?

verb

• Become used up; be exhausted.
  • usage: "Our supplies finally ran out"
• Flow off gradually.
  • usage: "The rain water drains into this big vat"
  • synonyms: drain
• Leave suddenly and as if in a hurry.
  • usage: "The listeners bolted when he discussed his strange ideas"; "When she started to tell silly stories, I ran out"
  • synonyms: run off, bolt, bolt out, beetle off
• Lose validity.
  • usage: "My passports expired last month"
  • synonyms: expire
• Flow, run or fall out and become lost.
  • usage: "The milk spilled across the floor"; "The wine spilled onto the table"
  • synonyms: spill
• Exhaust the supply of.
  • usage: "We ran out of time just as the discussion was getting interesting"
• Prove insufficient.
  • usage: "The water supply for the town failed after a long drought"
  • synonyms: fail, give out
• Use up all one's strength and energy and stop working.
  • usage: "At the end of the march, I pooped out"
  • synonyms: poop out, peter out, run down, conk out