To be absent from a place, especially one's home or usual place of work. She will be out of the office until next week.
To be revealed or made public, especially in reference to information or news. The news will be out by tomorrow morning.
To be no longer fashionable or popular. That style of music is out now.
To be extinguished, as in a fire or light. Make sure the campfire is out before you leave.
To be eliminated or disqualified from a competition or event. Our team is out of the tournament after losing the last match.