What does the word somebody mean?

Usage examples for somebody

  1. There is somebody else I suppose. – The Duke's Children by Anthony Trollope
  2. There is not room for us all, and somebody must go with her, you know. – A Tale of a Lonely Parish by F. Marion Crawford
  3. She was fair screamin' for somebody to come help her hold it. – The Machine That Saved The World by William Fitzgerald Jenkins