What does the word immune mean?

Usage examples for immune

  1. You and Peter are immune, so I sha'n't waste any of my precious ammunition on you. – Peter A Novel of Which He is Not the Hero by F. Hopkinson Smith
  2. But he had started with a sound constitution, and somehow persuaded himself, in spite of warnings, that he was immune. – The White Wolf and Other Fireside Tales by Arthur Thomas Quiller-Couch
  3. When a player is hard pressed or breathless, or does not wish to play, he may become immune from tagging by crossing any one finger over its neighbor on either hand, as the forefinger over the middle finger. – Games for the Playground, Home, School and Gymnasium by Jessie H. Bancroft