Luck
noun
This takes the luck meaning from the kanji. Think of it this way: If you're "carrying" you're going to create your own luck. Now nobody will mess with you, kanji gangstah. You carry guns and have a ton of luck because of it.
うん
The reading is the same as the one you learned with the kanji! How... shall I say... luck-filled?
今日が運が良いみたいで宝くじが当たったんだ。
It seems like I am lucky today. I won a lottery.
ギャンブルは実力よりも運が大切だ。
What matters for gambling is your luck, rather than your ability.
こんなことで使い果たしたくはないけど、これで運を使い果たしちゃったかも。
I might have run out of luck though, and I don't want to use it up on something like this.