具合

1. Origins, structure, and basic meaning

• Structure: Spelling: 具合. Reading: ぐあい. Core meaning: condition; progress.
• Basic usage: Representative examples: 扉の具合を確かめてから鍵を掛けた / 作業の進み具合を午後に報告します.

2. Common pitfalls and similar expressions

• Condition and degree of progress
  • 扉の具合 describes an object's condition, while 進み具合 describes how far work has progressed. The word covers a contextual condition or degree rather than one fixed kind of state.