thuá»·

Definition

1. Noun (Archaic):

   • Water: In classical Vietnamese philosophy and cosmology, "thuỷ" refers to water as one of the Five Fundamental Elements (Ngũ Hành: metal, wood, water, fire, earth).
   • Mercury, Quicksilver: The liquid metal, used historically in processes like mirror-making.

2. Noun (Modern, specialized):

   • Navy, Naval Forces: Used as a root in compound words related to maritime or naval matters.
   • Tinning, Silvering: The process of applying a reflective metallic coating (traditionally tin or mercury) to glass to create a mirror.

Usage Examples

• Noun (Archaic):

  • Trong Ngũ Hành, "thuỷ" đại diện cho nước. (In the Five Elements, "thuỷ" represents water.)
  • Gương ngày xưa được tráng bằng thuỷ. (Mirrors in the old days were coated with mercury.)

• Noun (Modern):

  • "Thuỷ" là thành phần trong từ "thuỷ quân". ("Thuỷ" is a component in the word "navy".)

Advanced Usage

• This word is almost never used in isolation in modern everyday Vietnamese. Its primary function is as a root in compound words, particularly in formal, scientific, or military terminology.
• It carries a classical, literary, or technical nuance.

Variants and Related Words

• Thuỷ quân (n): Navy, naval forces.
• Thuỷ lợi (n): Irrigation, water conservancy.
• Thuỷ điện (n): Hydroelectricity.
• Thuỷ triều (n): Tide.
• Thuỷ ngân (n): Mercury (the chemical element).
• Thuỷ thủ (n): Sailor, seaman.
• Thuỷ tinh (n): Glass; crystal.
• Tráng thuỷ (v): To tin, to silver (a mirror).

Synonyms

• Nước: Water (the common, modern word).
• Thuỷ ngân: Mercury (the specific element).
• Hải quân: Navy (more common modern term).

Notes on Usage

• Learners should be aware that "thuỷ" is a Sino-Vietnamese root word. When referring to the physical substance "water" in daily life, the native Vietnamese word "nước" is always used.
• Using "thuỷ" alone to mean "water" would sound archaic and poetic, not natural for modern speech. Its correct modern application is within compound words.