This man is well known for building very sturdy houses.
The king built an unbelievably beautiful castle on top of the mountain.
Our company is saving money to build a school for children in another country.
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means build so the verb vocab version is to build.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: Think about what happens when you build something. What are you doing? You're standing it up. How do you say "to stand" in Japanese? たてる. That's the reading of this word as well. If you think about it they're similar!