What is the meaning of demoralize?

verb

• Corrupt morally or by intemperance or sensuality.
  • usage: "debauch the young people with wine and women"; "Socrates was accused of corrupting young men"; "Do school counselors subvert young children"; "corrupt the morals"
  • synonyms: corrupt, pervert, subvert, demoralise, debauch, debase, profane, vitiate, deprave, misdirect
• Lower someone's spirits; make downhearted.
  • usage: "These news depressed her"; "The bad state of her child's health demoralizes her"
  • synonyms: depress, deject, cast down, get down, dismay, dispirit, demoralise
• Confuse or put into disorder.
  • usage: "the boss's behavior demoralized everyone in the office"