diligence in WordNet English dictionary

1. a diligent effort
   "it is a job requiring serious application"
   application  diligence 
   
2. persevering determination to perform a task
   "his diligence won him quick promotions"; "frugality and industry are still regarded as virtues"
   diligence  industriousness  industry 
   
3. conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation
   diligence