Hope, Expectation, Anticipation, Pleasure, Enjoyment
Noun and な adjective
たのしみ
あなたに会うのが楽しみです。
I’m looking forward to seeing you.
夏休みの楽しみと言えば、海にキャンプに色々あると思いますよ。
I think there are lots of different fun activities during summer break, like going to beach and camping and stuff.
私達、みんな亀を燃やすのを楽しみにしているんだよね？
We are all looking forward to burning turtles, aren’t we?
You've seen the word 楽しい, which means "fun." This is obviously very similar looking, though this one means looking forward to. Why? Because it has a み on the end, saying "who is going to have fun? It's me! That's why I'm looking forward to it!"
The reading is just like 楽しい, so make sure you know that and you'll be able to read this one as well.