The noun "joy" can be both countable and uncountable.
Meaning: a feeling of great happiness
Example sentence: When the band heard that their song was a hit, they all jumped for joy.
Meaning: something that makes you feel very happy
Example sentence: They described all the joys of being a parent, but they didn't mention the sleepness nights.
Test your understanding:
- The director said he got a lot of joy from working with the actors.
- The actors said the director was a joy to work with as well.