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Thai

เน่าเสีย

Components

เน่า
เสีย

Pronunciation

nâw sǐa

rot

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  1. 1 rot、spoil、decay

Describes food, water, waste, or other organic matter that has decomposed, spoiled, and often developed a bad smell.

1

rot、spoil、decay

Verb⭐️3 Common

Describes food or organic matter undergoing decay and becoming unfit to eat or use.

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Learning notes

Explanation

เน่าเสีย combines เน่า, “to rot,” with เสีย, “to become damaged or unusable.” It suggests more than a slight loss of freshness: decay has ruined the original quality of the item. A foul smell is often associated with it. Thai words describing states can function directly as predicates, so อาหารเน่าเสีย can mean either “the food spoils” or “spoiled food,” depending on context. ที่ can be added for explicit noun modification, as in อาหารที่เน่าเสีย, “food that has spoiled.” The word is common in everyday speech as well as in discussions of food safety, sanitation, and environmental problems.

Usage

It is commonly used when discussing meat, vegetables, leftovers, or other food that may have spoiled. It also appears in food-safety guidance and in descriptions of decomposing waste or foul water in canals and drainage systems.

Caution

น้ำเน่าเสีย usually suggests water made foul by decomposition, often with an unpleasant smell. For water contaminated by chemicals or other substances, น้ำปนเปื้อน may be more appropriate; น้ำเสีย is the broader term for wastewater or polluted water.

Differences from similar words

1 rot synonyms

  • บูด is commonly used when milk, soup, curry, or similar food turns sour. เน่าเสีย applies more broadly and can suggest decomposition and a foul smell.

  • เน่า is the basic, broadly used word for “rot.” เน่าเสีย more explicitly emphasizes that decay has ruined something and made it unfit to eat or use.

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