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]
(..) Watch it, coming up here. Are you kidding me with this? Get rid of them. Your eyes are red. A few tears for your long-lost boss? - Tears of joy. I hate job hunting. - Yeah, vacation's over. Where to, sir? - Take us to the hospital, please, Happy. - No. No? Tony, you have to (..)2008 Iron Man