旗振り

1. Origins, structure, and basic meaning

• Structure: 旗振り is read はたふり and can mean waving a flag or taking the lead in an initiative.
• Basic usage: It describes a literal departure signal or a figurative leading role in community reform.

2. Common pitfalls and similar expressions

• Literal action and figurative role
  • In 旗振りで知らせる, waving a flag is the means of signaling.
  • 旗振り役を務める means taking a leading role in an initiative; it need not involve an actual flag.