Everyday abbreviation for a large retail department store. The fuller form is デパートメントストア, but デパート is the normal common word.
See also: デパートメントストア
I bought shoes at the department store in front of the station.
Department stores get crowded on weekends.
Abbreviation of デパートメント in the sense of an organizational or business department. This is much less common than the department-store meaning; in normal modern Japanese, 部門 or 部署 is usually clearer.
See also: デパートメント
In this context, デパート refers to a department, not a department store.
I plan to go shopping at the department store this weekend.
There's a food section in the basement of the department store.
スーパーマーケット mainly sells food and daily groceries, whereas デパート is a multi-floor department store selling clothing, cosmetics, and other non-food goods.