What does the word zest mean?

Usage examples for zest

  1. When Josh was told of his master's intention, his eyes gleamed with pleasure, and he went to his work with the zest of long hunger. – The Strength of Gideon and Other Stories Strength of Gideon; Mammy Peggy's Pride; Viney's Free Papers; The Fruitful Sleeping of The Rev. Elisha Edwards; The Ingrate; The Case of 'Ca'line'; The Finish of Patsy Barnes; One Man's Fortunes; Jim's Probation; U by Paul Laurence Dunbar
  2. So was my fatigue, and I turned with a zest to my letters and to the arrangements necessary for a three days' absence. – The Gloved Hand by Burton E. Stevenson
  3. The first zest of interest and occupation in a new world had died an inevitable death; that was natural enough and could raise no surprise. – A Question of Marriage by Mrs. George de Horne Vaizey