1charity
2happy occasion
3Daoist or Buddhist ceremony for the souls of the dead
4good action, deed, thing or work (also sarcastic, "a fine thing indeed")
Examples
nà那bú不huì会shì是yí一jiàn件hǎo shì好事。
那不会是一件好事。
That wouldn't be a good thing.
年轻的时候多看点好书是件好事。
It's a good thing to read good books when you are young.
电视上没有什么好事。
There's nothing good on television.