をつかむ

to grasp or seize …; to grasp … (figuratively)

→ を
phrase Rare #21,462
to grasp or seize …; to grasp … (figuratively) を marks the object of つかむ. The verb can refer to physically grabbing something or figuratively grasping an idea, truth, or opportunity.
JA: 探偵がその事件の真相をつかむまで半年かかった。
EN: It took the detective six months to grasp the truth of the case.

彼女はテーブルをつかむまで、手を震わせていた。

Her hands were trembling until she grabbed the table.

そういう人々がチャンスをつかむのだ。

Those are the kind of people who seize opportunities.

学校ではみんながお腹をつかむのよ

At school, everyone clutches their stomachs.

— JUNO/ジュノ (2007)

それは雲をつかむような話だ。

That’s like trying to grasp clouds.

探偵がその事件の真相をつかむまで半年かかった。

It took the detective six months to uncover the truth about the case.

彼女は状況をつかむことができる。

She can grasp the situation.