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: You have been defeated. You lay there on the ground, and the fans around the stadium are disgusted with your performance. Some hipster walks up to you and says: "Yah, Boo" (やぶ) referring to how poorly you did. "No boo!" you reply back. "Yah boo" they say again.
The Blue Jays lost the game to the Red Socks with a score of 1-3.
As we all expected, Koichi was defeated again in the singing contest.
Did you hear that a guy got upset with Japan’s national ice hockey team when they were defeated in the first round of a preliminary game for the Olympics and threw some curry at them?