防備

1. Origins, structure, and basic meaning

• Structure: 防備（ぼうび） means preparing to protect against attack or danger, or the resulting defenses.
• Basic usage: 防備を固めた means strengthening defenses; 防備を整えた means putting the necessary defenses in place.

2. Common pitfalls and similar expressions

• Defense and preparation
  • 防御 focuses on defending against an attack, while 防備 focuses on the preparations and equipment needed for protection.