wai4 kei4為期为期

Jyutpingwai4 kei4
Yalewàih kèih
動詞Uncommon

Definition

To last for; to be for a period of.

writtentimework

How it's used

Used primarily in formal or administrative contexts, such as project timelines, contracts, or event schedules. It functions as a verb phrase indicating the duration of an event or agreement. While common in written announcements or formal speech, it sounds stiff and unnatural in casual, intimate conversation.

Examples

Common phrases

for a period of one week
for a period of one year

Common mistake

Avoid using it to describe the duration of a personal action or a casual activity, as it carries a sense of official scheduling. For everyday duration, use 玩咗三日 or 搞咗兩個月 instead.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector