What does the word tool mean?

Usage examples for tool

  1. I am the most useful tool of all." – The Story of a Stuffed Elephant by Laura Lee Hope
  2. He works with night, he has stolen death's tool frost That makes the breaking wave forget to fall. – The Atlantic Book of Modern Plays by Various
  3. A new tool but the same route. – Address by Honorable William C. Redfield, Secretary of Commerce at Conference of Regional Chairmen of the Highway Transport Committee Council of National Defence Highway Transport Commitee, Council of National Defence, Bulletin 4 by US Government