blessing in WordNet English dictionary

1. the formal act of approving
   "he gave the project his blessing"; "his decision merited the approval of any sensible person"
   blessing  approval  approving 
   
2. the act of praying for divine protection
   blessing  benediction 
   
3. a ceremonial prayer invoking divine protection
   benediction  blessing 
   
4. a short prayer of thanks before a meal
   "their youngest son said grace"
   grace  blessing  thanksgiving 
   
5. a desirable state
   "enjoy the blessings of peace"; "a spanking breeze is a boon to sailors"
   blessing  boon