What does the word witness mean?

Usage examples for witness

  1. " Not to my knowledge," the doctor replied in perfect good faith, for he had no suspicion that the man eying him so closely was the one witness of his marriage with Adah, the stranger whom he scarcely noticed, and whose name he had forgotten. – Bad Hugh by Mary Jane Holmes
  2. God be my witness in this! – Robin Hood by J. Walker McSpadden
  3. Merthyr was a witness of the return of Mrs. Chump to Brookfield. – The Complete Project Gutenberg Works of George Meredith by George Meredith