seng4 maan5成晚

Jyutpingseng4 maan5
Yalesèhng máahn
Common

Definition

All night long; the whole night.

colloquialtime

How it's used

Focuses on the duration of an event spanning the entire night, often implying that the speaker feels the time was long or that the action was continuous. It is frequently paired with the particle 都 to emphasize that nothing else happened or that the state remained unchanged throughout the duration. Use this when describing activities like working, partying, or worrying that kept you up until dawn.

Examples

Where did you go to hang out all night long?

Related words

Common phrases

didn't sleep all night
it was like that all night

Common mistake

Do not confuse this with the Mandarin term 整晚, which is less common in spoken Cantonese. Learners sometimes mistakenly use 晚 as a standalone noun for night in this context, but 成晚 acts as a temporal adverbial phrase and does not require additional particles like 喺.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector