bit1必

Jyutpingbit1

Yalebīt

語素Common

Definition

Certainly; definitely; must; necessarily.

neutraldescriptions

How it's used

Functions primarily as a formal or literary marker of certainty, appearing most naturally in compound words or fixed expressions. When used as a standalone adverb in spoken Cantonese, it often sounds slightly dramatic or emphatic, as if predicting a guaranteed outcome. It is far less common in casual speech than the more versatile and natural alternative 一定.

Examples

le1呢gin2件si6事bit1必seng4成，nei5你fong3放sam1心laa1啦。

This matter will definitely succeed, don't you worry.

keoi5佢gam3咁nou5努lik6力，gam1今ci3次haau2考si5試bit1必gwo3過laa1啦？

He is working so hard, he will definitely pass the exam this time, right?

Common phrases

bit1必sau1修

compulsory

bit1必sing3勝

certain victory

Common mistake

Learners often try to use it as a direct substitute for 一定 in everyday conversation, which can make sentences sound overly formal or stiff. It does not function as a modal verb for obligation in the same way that 必須 or 要 does.