This is the 4265th most frequent Japanese word.
偉い
Great; admirable; remarkable.
偉い is used here to describe someone as great or admirable, highlighting leadership qualities.
彼は偉いリーダーです。
He is a great leader.
偉い is used here to express admiration for someone's calm and forgiving behavior.
そんなことで怒らないなんて偉いね。
It's admirable that you don't get angry about such things.
偉い is used to praise and encourage the child's ability to take responsibility.