Meaning of まっこう in Japanese

いつも真っ向勝負だけでなく、たまには虚虚実実の駆け引きとやらもやってみたいよね。
We have to be ready not only for a straightforward test of strength, but also for a struggle in which every strategy comes into play.

マッコウクジラは１０００メートルの深さまで潜ることができる。
The sperm whale can dive to a depth of 1,000 meters.

首相が政敵の挑戦と真っ向から対決しました。
The prime minister directly confronted the challenges of his political opponents.