In Unit 0, we learned that 二 ji6 means ‘two’. 兩 loeng5 also means ‘two’. However, 二 ji6 and 兩 loeng5 are used in different situations.

We use 二 ji6 to count or to say a number (e.g., room numbers and telephone numbers).

We use 兩 loeng5 to indicate the quantity of something.

⚠️ To mean ‘second’, we say 第二 dai6 ji6, but not 第兩 dai6 loeng5.