What does the word available mean?

Usage examples for available

  1. At the last moment a gentleman rushed into the station, jumped into the first available carriage, that in which she was seated, and had just time to close the door when the train started. – Elizabeth Gilbert and Her Work for the Blind by Frances Martin
  2. A field car was available to take them to town and Miss Comstock joined them. – Jane Stewardess of the Air Lines by Ruthe S. Wheeler