1. I〔建物の骨組〕the framework;〔土台〕the foundation
  1. II〔支えるもの〕a support; a supporter
    • 長男が一家の屋台骨になっている
    • The oldest son is the mainstay of the family.
    • 石油投機の失敗で会社の屋台骨がかしいだ
    • The fortunes of the company declined owing to losses in oil speculation./Losses in oil speculation undermined the company.