Definition

1. Noun:

   • Bumper harvest / Abundant yield: A significantly larger than usual quantity of agricultural produce gathered from a crop or harvest season.
   • Surplus due to increased productivity: The extra amount of goods or results obtained, primarily due to enhanced efficiency or output.

2. Adjective (used attributively):

   • High-yielding / Bountiful: Describing a crop, season, or endeavor that produces results far exceeding the normal or expected amount.

Usage Examples

• Noun:

  • Năm nay, nông dân vui mừng vì một vụ mùa bội thu. (This year, the farmers are happy because of a bumper harvest.)
  • Khoai, lúa đều bội thu. (The yield of sweet potato and rice was greater than usual.)
  • Số bội thu về tăng năng suất. (The surplus is due to better productivity.)

• Adjective:

  • Họ đang kỳ vọng vào một mùa vụ bội thu. (They are expecting a high-yielding crop season.)

Advanced Usage

• The term can be extended metaphorically beyond agriculture to describe any endeavor yielding exceptionally successful results, such as in business, academics, or sports.
  • Chiến dịch kinh doanh đã mang lại một thành quả bội thu. (The business campaign yielded an abundant harvest of results.)

Variants and Related Words

• Thu hoạch (n): harvest, yield.

  • Thu hoạch năm nay rất khả quan. (This year's harvest is very promising.)

• Mùa màng bội thu (n phrase): bumper crop season.

  • Mong rằng mùa màng năm nào cũng bội thu. (I hope every year's crop season is bountiful.)

Synonyms

• Bumper crop: An unusually large harvest.
• Abundant harvest: A plentiful yield.
• Windfall: An unexpected, large gain (often used in financial contexts, but applicable metaphorically).

Related Idioms

• Được mùa (idiom): to have a good harvest; to be in season (for crops). This is a closely related concept, though "bội thu" emphasizes exceeding expectations more strongly.
  • Năm nay trời phù hộ nên được mùa. (This year, with heaven's blessing, we have a good harvest.)

1. Yield more than usual
   • khoai, lúa đều bội thu
     the yield of sweet potato and rice was greater than usual
   • một vụ mùa bội thu
     a main crop more abundant than usual
   • số bội thu về tăng năng suất
     the surplus due to better productivity