What does the word sustenance mean?

Usage examples for sustenance

  1. If the bread and meat of human sustenance should appear in the body as recognizable bread and meat, it would hardly be a sign of health. – Horace and His Influence by Grant Showerman
  2. The baby at her bosom moaned in the act of sucking; one knew not how the poor woman could supply sustenance to another being. – The Nether World by George Gissing
  3. He was thoroughly wet through, jaded, wretched, and in want of sustenance. – Ayala's Angel by Anthony Trollope