公約

1. Origins, structure, and basic meaning

• Structure: 公約 is read as こうやく and is a noun for a publicly announced pledge, used in 公約に掲げる and 公約の実現.
• Basic usage: It applies to policies or projects promised by a candidate or elected representative.

2. Common pitfalls and similar expressions

• Public commitment
  • It concerns a public pledge by a representative rather than an ordinary private promise.
• Key collocations
  • Use 公約に掲げる for announcing a pledge and 公約の実現 for carrying it out.