To perceive or detect the true nature of something — to see through a person's heart, lies, or hidden facts.
警察は彼のアリバイの嘘を見抜いた。
The police saw through the lies in his alibi.
医者でも初期の病気を見抜くのは難しいことがある。
Even for doctors, it can be difficult to detect an illness in its early stages.
彼は人の性格を一目で見抜く力がある。
He has the ability to read a person's character at a glance.
長年の経験で相手の本心を見抜いた。
With years of experience, he detected the other person's true intentions.