What does the word about mean?

Usage examples for about

  1. I told you about it once. – Peter A Novel of Which He is Not the Hero by F. Hopkinson Smith
  2. You must not think that way about it. – Molly Brown's Junior Days by Nell Speed
  3. " I don't care about supper, thank you, uncle," said the lad. – Hildegarde's Home by Laura E. Richards