Category Nuances for rain_water:

• natural,
• clear,
• foreign,
• stock,
• extraneous,
• pure,
• incidental,
• little,
• outdoor,
• acidic,
• clean,
• abundant,
• large,
• external,
• unwanted,
• aqueous,

Simple Categories for rain_water:

• matter,
• material,
• object,
• source,
• water,
• system,
• medium,
• liquid,