fo2 ngau4火牛
Jyutpingfo2 ngau4
Yalefó ngàuh
Definition
An electrical transformer, power adapter, or charger.
- transformer
- power adapter; charger for electronic devices
colloquialtechnology
How it's used
Originally referring to the bulky, heavy transformers used in older electrical appliances, this term has evolved to become the standard colloquial word for any power adapter or charger. It is used universally for laptops, phones, and other gadgets regardless of their actual technical design. Using the formal term 變壓器 in daily conversation will sound overly technical or robotic.
Measure word
go3個goExamples
I cannot find the charger to charge the battery.
Related words
Common mistake
Do not confuse this with the literal meaning of fire and ox, as it is strictly used for electronic power supplies. It is also not used for portable power banks, which are typically called 充電寶 or 尿袋.
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.



