She answered the phone and, to her great 'joy', heard her son's voice on the line. [=she felt very happy when she heard her son's voice]
“You've spent hours looking for it. Any 'joy'? [='luck']” “No 'joy' whatsoever, I'm afraid. I can't find it.”
They were 'shouting/jumping for joy'. [=they shouted/jumped because they were very happy]
(..) D'you mind if I...? over the last year. All over Oceania, spontaneous demonstrations of Party workers have been voicing their gratitude and joy. In honour of this massive overfulfilment of the ninth Three-Year Plan, it has been announced that the chocolate ration is to be increased to g per week. (..)1984 1984