偽札

1. Origins, structure, and basic meaning

• Structure: 偽札 is read as にせさつ and is a noun for a banknote counterfeited to look like genuine currency.
• Basic usage: Discovery appears in 紙幣が偽札だと気付く, while detection appears in 偽札を見分ける.

2. Common pitfalls and similar expressions

• Difference from 偽物
  • 偽物 is a fake object generally; 偽札 is specifically a counterfeit banknote.
• Limited to a bill
  • Because 札 refers to a note here, the word should not be broadened to counterfeit coins or forged documents.