を積む

to stack; to load

→ を
phrase Uncommon #15,692
to stack; to load Used for placing things in a pile or loading them onto or into a vehicle. The object being stacked or loaded comes before を.
JA: この石を積む。
EN: I will stack these stones.

その若い男性はその高齢女性が車に買った食料を積むことを手伝った

The young man helped the elderly woman load the groceries she had bought into her car.

経験を積むにつれて更に知恵身につく

As you gain experience, you acquire even more wisdom.

人前に出るには人に隠れて修業を積む事だ

To step into the spotlight, you must train in obscurity.

— さらば、わが愛/覇王別姫 (1993)

とにかくこの石を積むのだ

In any case, pile up these stones.

— 君たちはどう生きるか (2023)

車にここのカバンを積む手伝ってもらえる

Could you help me load these bags into the car?