This is the 1052nd most frequent Japanese word.
変わる
To change; to transform.
変わる is used to describe the change of natural phenomena (seasons) and its resulting effect on clothing styles.
季節が変わると、服装も変わります。
When the season changes, the clothing style also changes.
変わる is used to convey the alteration in someone's perspective or thoughts over time.
彼の意見は何度も変わった。
His opinion changed multiple times.
変わる is utilized to indicate substantial modification or reform in an institution or system.