wu1 nai4污泥
Jyutpingwu1 nai4
Yalewū nàih
Definition
Sludge; the semi-solid waste left behind after wastewater treatment.
neutralnatureother
How it's used
Refers specifically to the thick, semi-solid residue left behind after wastewater treatment or industrial processes. It is a technical term often encountered in environmental or engineering contexts rather than in casual daily conversation. When describing general dirt or mud on the ground, locals prefer using 泥 or 泥濘 instead.
Measure word
deoi1堆dēuiExamples
Why is there so much sludge here?
Related words
Common phrases
sludge treatment
Common mistake
Do not confuse this with 泥巴 or 泥漿, which refer to natural mud or clay found in nature. 污泥 implies contamination or waste products, making it inappropriate for describing natural soil or garden earth.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- NegationHow to say no, not, didn't, and don't in Cantonese. The four main negation words and when to use each one.
- Numbers and moneyCounting, talking about money, and asking how much things cost. Includes the two words for two and the everyday words for dollars and cents.
- Aspect markersCantonese has no tenses, but it does have aspect markers. Learn how zo2, gwo3, gan2, and hai2 dou6 show completion, experience, and ongoing action.
