a department store — a large retail establishment selling a wide range of goods (clothing, food, household items, etc.).
週末は近くの百貨店で買い物をする予定だ。
I plan to shop at the nearby department store this weekend.
あの百貨店の地下には美味しい食品売り場がある。
That department store has a delicious food section in the basement.
年末のセールで百貨店はとても混む。
Department stores are very crowded during the year-end sales.