This is the 2110th most frequent Japanese word.
実力
"実力" (じつりょく) means "ability" or "true capability."
In this sentence, '実力' refers to someone's true ability or skill that is demonstrated.
彼はその試合で実力を発揮した。
He demonstrated his true ability in that match.
Here, '実力' means one's competence or capability that is acknowledged by others.
彼女の実力は誰もが認めるところだ。
Her competence is recognized by everyone.
In this usage, '実力' denotes one's inherent or actual ability that can be compared with external efforts.