賭ける

1. Origins, structure, and basic meaning

• Structure: 賭ける (かける) is a transitive verb meaning to bet or stake money, an object, or something else of value on an outcome.
• Basic usage: It describes betting lunch on who arrives first or warning against staking a valued object on a contest.
  • 兄はどちらが早く着くか昼食を賭けた。 — My older brother bet lunch on who would arrive first.
  • 大切な物を勝負に賭けるべきではない。 — Do not stake something valuable on a contest.

2. Common pitfalls and similar expressions

• Stake and contest
  • The item at stake can take を, as in 昼食を賭ける, while に can mark the contest or outcome on which it is staked.