Rich Person
Rich, Wealthy
noun
When you hold gold you are a rich person.
Do you remember the word お金? This is the 金 in that word. The reading for 持ち is the も you learned with 持つ. So, combine the かね of お金 and the 持ち and you have the reading of this word. Note that just like お金, you'll often see this with the honorific prefix お in front of it as well.
かれ、お金持ちなんだけど…
He’s rich though…
ちょうお金持ちとけっこんしたい。
I want to marry someone who is filthy rich.
若い頃、お金を稼ぐために、近所のお金持ちの人たちの使い走りをしていました。
I used to run small errands for a wealthy neighbor of mine to make money when I was young.