水洗い

1. Origins, structure, and basic meaning

• Structure: 水洗い is read as みずあらい and functions as a noun or with する for washing with water or laundering in water.
• Basic usage: Mark the item washed with を in 靴を水洗いする, and express inability with 上着は水洗いできない.

2. Common pitfalls and similar expressions

• Rinsing and laundering
  • With muddy shoes it is washing them with water; with a jacket it concerns whether the care label permits water-based laundering.
• Scope of the negative form
  • 水洗いできない rules out washing that garment in water; it does not state that no form of care is possible.