Definition

1. Noun:
   • Brackish water: Water that has more salinity than fresh water but less than seawater, often found where rivers meet the sea.
   • Second water / Secondary water: Can refer to water from a second boiling or a secondary, often inferior, source.

Usage Examples

• Noun:
  • Vùng cửa sông thường có nước hai. (Estuary areas often have brackish water.)
  • Nấu trà bằng nước hai có thể không ngon. (Making tea with second-boil water may not taste good.)

Advanced Usage

• In specific regional or technical contexts, "nước hai" can denote water that is reused or is a by-product of a process.

Variants and Related Words

• Nước lợ: A direct synonym for brackish water.

  • Đây là vùng nước lợ. (This is a brackish water zone.)

• Nước ngọt: Fresh water.

  • Nước ngọt khan hiếm ở vùng này. (Fresh water is scarce in this region.)

• Nước mặn: Salt water.

  • Nước mặn của biển. (The salt water of the sea.)

Synonyms

• Brackish water
• Briny water (less common)

Related Idioms

No common idioms directly feature the term "nước hai."