kai2啟启
Jyutpingkai2
Yalekái
Definition
To open, start, initiate, or state.
- to open; to unseal
- to start; to initiate; to begin
- literaryto state; to inform; to declare
writtendaily actionswork
How it's used
Use this character primarily in formal or compound words rather than as a standalone verb in daily speech. It carries a sense of starting something significant, such as a project, a journey, or a process of enlightenment. In casual conversation, you will almost always use 開 instead of 啟 when talking about opening physical objects like doors or bottles.
Examples
They have decided to launch the new project.
Related words
Common phrases
to inspire
to launch or activate
Common mistake
Do not use this word to describe opening physical objects like a window or a book, as that would sound extremely unnatural or archaic. Stick to 開 for all physical opening actions.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- TonesCantonese has six tones, and the tones can change in certain grammatical contexts. Learn the six tones and the rules for tone change.
- Time and datesClock time, days of the week, months, and years. The patterns you need to make plans and talk about when things happen.
- Modal verbsHow to say can, will, may, should, must, and want. The core modal verbs of Cantonese and the differences that trip up beginners.



