diligence [diligences](qualities of a hard worker, including conscientiousness, determination, perseverance) noun [UK: ˈdɪ.lɪ.dʒəns] [US: ˈdɪ.lə.dʒəns]
effort [efforts](the amount of work involved in achieving something) noun [UK: ˈe.fət] [US: ˈe.fərt]