number of items; quantity
Used for counting discrete objects, products, or articles. Often appears in commercial, inventory, or order contexts.
Please check the quantity before ordering.
この商品の個数は限られています。
The number of these items is limited.
I counted the number of apples in the box.
Please check the quantity of items before shipping.
I'm having trouble because the inventory count doesn't match.
There's a limit of one sale item per person.