宝くじ

1. Origins, structure, and basic meaning

• Structure: The spelling is 宝くじ, read たからくじ, and it is a noun for a ticket purchased for a chance to win money through a drawing.
• Basic usage: 宝くじ means a lottery ticket that may win a prize if its number or conditions match the result.

2. Common pitfalls and similar expressions

• One purchased ticket and the ticket left after the drawing
  • Both examples use the form 宝くじ. The first specifies a quantity of one bought near the station; the second is a losing ticket kept as a souvenir.
• One ticket from a station stand and a losing ticket kept as a memento
  • 駅前の売り場で宝くじを一枚買った。 — I bought one lottery ticket at the stand near the station.
  • 当たらなかった宝くじを記念に取っておいた。 — I kept the losing ticket as a souvenir.