sei2 seon3死信
Jyutpingsei2 seon3
Yaleséi seun
Definition
Dead letter; an undeliverable letter with an incorrect address and no return address.
neutralcommunication
How it's used
Refers specifically to mail that cannot be delivered or returned to the sender due to incomplete or illegible information. While the term is standard in postal contexts, it is rarely used in casual conversation unless discussing logistics or mail issues. It carries a formal, bureaucratic tone rather than an emotional one.
Measure word
fung1封fūngExamples
This letter couldn't be delivered and has become a dead letter.
How does the post office handle dead letters?
Related words
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
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Grammar guides
- 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.
- In 30 secondsThe whole language at a glance. No tenses, no plurals, six tones, sentence particles. Read this before you dive into any specific topic.
- ParticlesSentence particles add tone, emotion, and nuance. Learn the most common particles in Cantonese and how to use them.



