This is the 3155th most frequent Japanese word.
勝ち
"勝ち" means "victory" or "win."
In this sentence, 勝ち (kachi) refers to 'victory' or 'win,' used as a noun to indicate the result of an event.
彼の勝ちは予想外のことでした。
His victory was unexpected.
Here, 勝ち (kachi) is a noun forming part of the compound phrase 勝ち方 (kachikata), meaning 'way of winning.'
試合の勝ち方はとても重要です。
The way to win a match is very important.
In this usage, 勝ち (kachi) is part of the verb 勝つ (katsu), meaning 'to win.' It indicates the action performed.