お金

1. Origins, structure, and basic meaning

• Structure: お金 (おかね) is the everyday noun money.
• Basic usage: お金をためる makes money the object saved; お金が残っている makes the remaining amount the subject.

2. Common pitfalls and similar expressions

• Saved money and remaining balance
  • Saving takes を, while the balance that remains takes が; polite prefix お is part of the established headword.