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]
(..) in a new hall. Mighty and beautifull. Why not? And in this hall we shall divide the spoils of our conquest, the gold and the treasure. And this shall be a place of merriment, joy and fornication. From now until the end of time. I name this hall... HERAT! Treasure, let's hand out some treasure. (..)2007 Beowulf