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]
(..) But we all die. The enemy always wins. But we still need to fight him. That's all I know. You and I won't find much joy while we're here. But we can keep up the life. We can defend those who can't defend themselves. I am the shield that guards the realm of men. (..)2017 TvShow: Game of Thrones Title: Beyond the Wall Season: 7 Episode 6