sat1 haau6失效
Jyutpingsat1 haau6
Yalesāt haauh
Definition
To lose efficacy, become invalid, or cease to function.
neutraldaily actionstechnology
How it's used
Focuses on the loss of functional status or legal validity rather than just being broken. It is commonly used for digital credentials, legal documents, and medical efficacy. Unlike broken objects which are physically damaged, something that is 失效 might look perfectly fine but simply fails to perform its intended function.
Examples
That flight ticket has already become invalid.
Why would this password become invalid?
Related words
Common mistake
Avoid using it for physical objects that are broken or smashed, as those are better described as 爛 or 壞. It is strictly for abstract systems, rules, or chemical properties.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- Directional complementsThe small words added after a verb to show direction of movement, like up, down, out, in, and back. Common in everyday Cantonese.
- DemonstrativesThis and that with 呢 and 嗰, the personal pronouns, and how 哋 turns I, you, and he into we, you all, and they.
- Resultative complementsSticking a result word onto a verb to show how it turned out, like eat until full or look and find. A productive everyday pattern.



