Definition

1. Conjunction:
   • Otherwise, or else, lest: Used to express a warning or indicate a negative consequence that will likely occur if a certain action is not taken. It is synonymous with "kẻo nữa".

Usage

• "Kẻo rồi" is used at the beginning or in the middle of a clause that states the undesirable outcome. It is typically preceded by a clause suggesting a recommended action.
• It functions as a subordinating conjunction connecting an imperative or suggestive action with its potential negative result.
• The tone is cautionary or advisory.

Usage Examples

• Conjunction:
  • Làm bài tập đi, kẻo rồi cô giáo phạt. (Do your homework, otherwise the teacher will punish you.)
  • Phải về sớm kẻo rồi trời tối. (We must go home early, or else it will get dark.)
  • Ăn nhanh lên kẻo rồi đồ ăn nguội hết. (Eat quickly, lest the food gets completely cold.)

Advanced Usage

• "kẻo rồi" in formal vs. informal speech: While correct, "kẻo rồi" is more common in spoken Vietnamese. In more formal writing, alternatives like "nếu không" (if not) might be preferred, though the cautionary nuance differs slightly.
• Implied urgency: The phrase often carries a sense of urgency, implying the negative consequence is imminent or highly probable.

Variants and Related Words

• Kẻo: A shorter, more common form with the same meaning ("otherwise"). It is often used interchangeably with "kẻo rồi".
  • Mặc áo ấm vào kẻo lạnh. (Put on warm clothes or else you'll get cold.)
• Kẻo nữa: A direct synonym for "kẻo rồi", identical in meaning and usage.
  • Đi ngay đi kẻo nữa muộn. (Go now, otherwise you'll be late.)
• Nếu không thì: A more neutral and common phrase for "otherwise/if not then". It states a conditional result without the strong cautionary tone of "kẻo rồi".
  • Học chăm chỉ, nếu không thì bạn sẽ thi trượt. (Study hard, otherwise you will fail the exam.)

Synonyms

• Bằng không: Otherwise, or else (slightly more formal).
• Nếu không: If not.
• Phòng khi: In case (used more for precaution than warning of an immediate consequence).

Related Idioms/Phrases

• Ăn kẻo rồi hết: This is not a fixed idiom but a common sentence structure exemplifying the word's use. It means "Eat it, otherwise it will be all gone."
• The word itself is a key component in constructing cautionary phrases rather than being part of a larger, fixed idiom.

1. như kẻo nữa