kei4 jat1其一

Jyutpingkei4 jat1
Yalekèih yāt
名詞Uncommon

Definition

One of them; one of the matters concerned.

writtenother

How it's used

Used primarily in formal or written contexts to introduce a single item from a larger set. It functions as a formal alternative to saying 係其中一個. You will rarely hear it in casual spoken Cantonese, as it sounds quite literary or academic.

Examples

He has many flaws, one of which is being lazy.

Common phrases

Common mistake

Learners often try to use it as a direct substitute for one in any context, but it cannot be used as a simple number or a standalone pronoun. It specifically requires a preceding context of a group or list to make sense.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector