飲み水

1. Origins, structure, and basic meaning

• Structure: 飲み水（のみみず） means water intended for drinking.
• Basic usage: Use it for drinking water prepared before going out or stored in a designated container.

2. Common pitfalls and similar expressions

• Purpose versus supply method
  • 飲み水 names water by its intended use for drinking; 水道水 names water supplied through a water system.