Tra từ storey - Từ điển Oxford Advanced Learner 8th

storey [storey storeys] (especially BrE) (especially US story)BrE [ˈstɔːri] NAmE [ˈstɔːri] noun (pl. stor·eys, NAmE stor·ies)
1. a level of a building; a floor
•the upper/lower storey of the house
•a single-storey/two-storey building
see also ↑multi-storey
2. -storeyed (BrE) (NAmE -storied) (in adjectives) (of a building)having the number of levels mentioned
•a four-storeyed building
See also: ↑story

Word Origin:
late Middle English: shortening of Latin historia ‘history, story’, a special use in Anglo-Latin, perhaps originally denoting a tier of painted windows or sculptures on the front of a building (representing a historical subject).

Which Word?:
storey / floor
You use storey (BrE)/story (NAmE) mainly when you are talking about the number of levels a building has: ▪ a five-storey house ◇ ▪ The office building is five storeys high.
Floor is used mainly to talk about which particular level in the building someone lives on, goes to, etc: ▪ His office is on the fifth floor.
note at ↑floor

Example Bank:
•He jumped out of the second-storey/second-story window.
•I live on the top storey.
•The building is four storeys/stories high.
•The building is four storeys high.
•The house has three storeys.
•The kitchen occupies the lower storey.
•They plan to add an extra storey.
•a five-storey house
•a single-storey/two-storey/three-storey building