兜 (dōu): pocket; bag; to wrap up or hold in a bag; to move in a circle; to canvas or solicit; to take responsibility for; to disclose in detail; combat armor (old); old variant of 兜[dou1]

Before leaving home, he put his keys in his pants pocket. When he got to the office, he discovered a hole in the pocket and the keys were gone.

Mom took a handkerchief out of her pocket, gently wiped the tears from her child's face, and then stuffed the remaining change back into her pocket.

While shopping, she saw a jacket. It looked nice and had large pockets that could hold a phone and a wallet, so she bought it.

I put some change in my jacket pocket, but forgot to take it out when doing laundry, so all the bills got washed and ruined.

He stood at the doorway with both hands in his pockets and his head lowered, as if waiting for someone—or just not knowing where to go.

The side pocket of this backpack can hold a water bottle, and the front pocket is good for tissues and keys—very convenient to use.