What does the word barb mean?

Usage examples for barb

  1. Late one afternoon a crowd stood on the border of the Strip, on the outside of the old barb- wire fence that divided it from the rest of space. – Land of the Burnt Thigh by Edith Eudora Kohl
  2. Kate did not like to hear her father called Barb, but Belle would not call him anything else. – Laramie Holds the Range by Frank H. Spearman
  3. Croucher wavered at his voice; it was terribly threatening, each subtle tone a poisoned barb. – The Crime Doctor by Ernest William Hornung