六つ

1. Origins, structure, and basic meaning

• Structure: 六つ (むっつ) is a traditional Japanese numeral used for six items or divisions.
• Basic usage: Six tangerines sit on a plate; a box is split into six sections for tools.

2. Common pitfalls and similar expressions

• Six items counted independently and six divisions modifying a noun
  • In みかんが六つ, the numeral stands independently, while 六つの区画 modifies a noun through の. It can also denote age in an appropriate context.