兆

1. Origins, structure, and basic meaning

• Structure: 兆 is read ちょう.
• Basic usage: It denotes the large-number unit trillion and follows a numeral to state an amount.

2. Common pitfalls and similar expressions

• Combining with numerals
  • It comes directly after a numeral in forms such as 一兆 and 二兆.
• Explaining the magnitude
  • 一億の一万倍 expresses the size of one trillion as a multiple of another number unit.