What does the word snuff mean?

Usage examples for snuff

  1. In the course of this nine and an half hours he made up his mind to take no more snuff. – An Essay on the Influence of Tobacco upon Life and Health by R. D. Mussey
  2. Brother Copas eyed her and took snuff. – Brother Copas by Sir Arthur Thomas Quiller-Couch
  3. " The Cardinal's snuff- box," he exclaimed, picking it up. – The Cardinal's Snuff-Box by Henry Harland