This is the 4737th most frequent Japanese word.
本領
"本領" means "one's true ability or characteristic role."
本領 is used to denote 'true abilities' or one's inherent skills in this context, talking about someone demonstrating their capabilities.
彼はやっと本領を発揮し始めた。
He finally started to show his true abilities.
本領 highlights 'true strength' or core attributes revealed in a specific context, such as a project.
今回のプロジェクトで彼女の本領がわかった。
Her true strength was understood through this project.
本領 refers to the 'full capabilities' or mastery shown under specific circumstances, like during a match.