具体

1. Origins, structure, and basic meaning

• Structure: 具体 (reading ぐたい) is a noun forming the base of expressions for an idea or content taking a definite, observable form.
• Basic usage: 具体的な数字 makes an explanation specific, while 提案を具体化する turns a proposal into an actionable form.

2. Common pitfalls and similar expressions

• Headword and derivatives
  • The examples use the na-adjectival 具体的な and the verb 具体化する, not the bare noun alone.
• Contrast with 抽象
  • 抽象 generalizes shared qualities; 具体 supplies identifiable details such as figures or assigned people.