Definition

1. Noun:
   • Urine: The liquid waste product excreted by the kidneys and stored in the bladder before being discharged from the body. This is the standard, neutral biological term.
   • Piss: A vulgar, informal, and direct term for urine. This usage is considered crude and impolite.

Usage Examples

• Noun:
  • Bác sĩ yêu cầu lấy mẫu nước đái để xét nghiệm. (The doctor requested a urine sample for testing.)
  • Đứa trẻ không kịp vào nhà vệ sinh nên làm đổ nước đái ra quần. (The child couldn't get to the toilet in time and wet his pants with urine.)
  • Từ "nước đái" là một từ thô tục, nên tránh dùng trong ngữ cảnh trang trọng. (The word "nước đái" is a vulgar term and should be avoided in formal contexts.)

Advanced Usage

• "Đái" as a verb: The root verb "đái" means "to urinate." The noun "nước đái" literally means "urine water" or "piss water."
  • Động từ "đái" rất thô lỗ. Thay vào đó, hãy nói "đi tiểu" hoặc "đi vệ sinh". (The verb "đái" is very rude. Instead, say "đi tiểu" or "đi vệ sinh".)

Variants and Related Words

• Nước tiểu (noun): Urine. This is the standard, polite, and clinical term used in medicine and formal situations.
  • Xét nghiệm nước tiểu cho thấy kết quả bình thường. (The urine test showed normal results.)
• Bãi nước đái (noun phrase): A puddle of urine.
  • Con chó để lại một bãi nước đái trên thảm. (The dog left a puddle of urine on the carpet.)

Synonyms

• Nước giải (noun): An older, less common synonym for urine. (As noted in the reference: "như nước giải").
• Urine (English): The direct and formal English equivalent.

Important Note on Register

The word "nước đái" is considered vulgar and impolite in modern Vietnamese. It is rarely used in writing, formal speech, or polite conversation. It is most commonly heard in crude speech, among very close friends in informal settings, or when expressing anger or contempt.

Always prefer "nước tiểu" for the noun (urine) and "đi tiểu" or "đi vệ sinh" for the verb (to urinate) in all polite, formal, and medical contexts.

1. như nước giải