What is the meaning of approval?

noun

• The formal act of approving.
  • usage: "he gave the project his blessing"; "his decision merited the approval of any sensible person"
  • synonyms: blessing, approving
• A feeling of liking something or someone good.
  • usage: "although she fussed at them, she secretly viewed all her children with approval"
• Acceptance as satisfactory.
  • usage: "he bought it on approval"
  • synonyms: favorable reception, favourable reception
• A message expressing a favorable opinion.
  • usage: "words of approval seldom passed his lips"
  • synonyms: commendation