Treasure
noun
The kanji and the word are exactly the same. That means they share meanings as well.
Your treasure has a tackler (たから) guarding it at all times. He tackles anyone who gets close. If someone wants your treasure, they have to go through the tackler!
これは、宝のマップです。
This is a treasure map.
中古ショップは宝の山みたいなもんだ。
A secondhand shop is like a mountain of treasure.
山の水は、この村の大切な宝です。
Mountain water is this village's precious treasure.