素人

1. Origins, structure, and basic meaning

• Structure: 素人, read しろうと, is a noun for someone without professional training or experience in a field.
• Basic usage: It refers to a layperson or beginner relative to a particular field or task.

2. Common pitfalls and similar expressions

• Field limited by には
  • 修理には素人だ says that the person is a layperson in repairs, not incapable in every area.
• Contrast with 専門家
  • The first example contrasts a layperson with a professional; 素人でも分かる instead emphasizes accessibility even to beginners.