ビル

ビル is a loanword from English "building," typically referring to multi-story commercial buildings.

COMMON EXPRESSIONS:

• 高(たか)いビル: tall building
• オフィスビル: office building
• ビルの5階(かい): 5th floor of the building
• ビルの屋上(おくじょう): building rooftop

COMPARISON:

• ビル: commercial/office building (loanword)
• 建物(たてもの): building (general, native word)
• マンション: apartment building (residential)
• 高層(こうそう)ビル: high-rise building

NOTE:
ビル typically implies a concrete/steel commercial structure. Residential buildings are more commonly called マンション or アパート.