What does the word cost mean?

Usage examples for cost

  1. It would cost him nothing! – What's Mine's Mine V1 by George MacDonald
  2. Cara felt that she must know- at any cost she must know. – The Vision of Desire by Margaret Pedler
  3. I will set you free, if it cost my life! – Our World, or, The Slaveholders Daughter by F. Colburn Adams