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The Vietnamese word "tỷ" is a noun that means "billion" in English. It is used to denote a quantity of one thousand million (1,000,000,000).

Usage Instructions:

• "Tỷ" is commonly used in numerical contexts, such as discussing populations, finances, or statistics.
• It can be used with other numbers when expressing amounts. For example, "một tỷ" means "one billion."

Examples:

1. Simple Usage:

   • "Việt Nam có khoảng 100 triệu dân." (Vietnam has about 100 million people.)
   • "Dân số thế giới đã đạt 7 tỷ." (The world's population has reached 7 billion.)

2. Advanced Usage:

   • In economic discussions: "Doanh thu của công ty đạt 5 tỷ đồng trong năm ngoái." (The company's revenue reached 5 billion VND last year.)
   • In scientific contexts: "Một tỷ ánh sáng năm là khoảng 9.46 triệu km." (One billion light-years is about 9.46 million km.)

Word Variants:

• "Tỷ" can have different forms when combined with other words. For instance:
  • "tỷ phú" means "billionaire."
  • "tỷ lệ" means "ratio," but note that "tỷ" here has a different meaning related to proportion rather than a numerical value.

Different Meanings:

• While "tỷ" primarily means "billion," it can also refer to "a large amount" in a more general sense when used in colloquial expressions.
• The context is important to determine the exact meaning.

Synonyms:

• In some contexts, you might hear "triệu triệu" (which literally translates to "million million") used informally to refer to a billion, but "tỷ" is the standard term.

Conclusion:

Understanding "tỷ" is essential for discussing large numbers in Vietnamese, especially in finance, demographics, and scientific contexts.

Academic

noun

1. milliard, billion