definition of
joy

[1] #1 joy n. [joyousness, joyfulness] the emotion of great happiness. wn

[2] #2 joy n. [delight, pleasure] something or someone that provides a source of happiness; "a joy to behold"; "the pleasure of his company"; "the new car is a delight". wn

[3] #3 joy v. [rejoice] feel happiness or joy. wn

[4] #4 joy v. [gladden] make glad or happy. wn