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]
(..) - Are you my quitter, Mr. Flea? - No, sir, Master Chief! Nothin' to be ashamed of, sir. Do you wanna quit? Not me, Master Chief! I'm full of joy! What the hell is going on down there? Move that fender! Class! Class, stand in line! (..)1997 G.I. Jane