fung1

Jyutpingfung1
Yalefūng
動詞Very common

Definition

To seal, block, or close off an opening or space to prevent flow or access.

colloquialdaily actionsplaces

How it's used

Beyond the literal sense of sealing an object like an envelope, this verb is frequently used to describe blocking off physical spaces or roads. It carries a sense of preventing access or flow, which is why it appears in contexts like government orders to close off areas or block internet access. When talking about money, it specifically refers to putting cash into a red packet.

Examples

Have you sealed the envelope yet?
The road is blocked off, we have to take a detour.

Related words

see alsosaan1sānsee alsocoi3choi

Common phrases

to seal up
to block off a road
to prepare a red packet

Common mistake

Do not confuse this with 閂, which is used for closing doors or windows. While 閂 implies closing a barrier that is meant to be opened and shut, 封 implies creating a seal or a complete blockage that restricts access entirely.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector