Boulder, Rock
noun
The kanji and the word are exactly the same. That means they share meanings as well.
いわ
The reading is the same as the one you learned with the kanji, so you can read this one!
そこには大きな岩がたくさんあります。
There are many large rocks there.
あの岩の上でサンドイッチを食べました。
I ate a sandwich on that boulder.
その岩、めっちゃツルツルしてるから気をつけて。
Be careful with that rock, it's very slippery.