ビルbiru

1. nounmulti-floor building; multi-storey building
   私の事務所じむしょはあのグレーの６階かい建だてのビルの４階かいだ。↗

   My office is on the fourth floor of that gray six-story building.

• SynonymビルディングNeutralThe full form of 「ビル」; slightly formal or used in building names. In everyday speech it is almost always shortened to 「ビル」.
• Antonym平家ひらやNeutralRead 「ひらや」 (usually written 「平屋」), it means a single-story house, the opposite of a multi-story 「ビル」. Read 「へいけ」, it refers to the Taira clan.

For a multi-story building, 「ビル」 is the default word. 「ビルディング」 is the full form, kept for formal contexts or building names, while 「平屋」 (read 「ひらや」) is a single-story house.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. ビルディング。