普及

1. Origins, structure, and basic meaning

• Structure: Written 普及 and read ふきゅう, it is the process by which a tool, technology, or method becomes widely known and used.
• Basic usage: It appears when adoption changes daily life and when explanation is needed to spread a cultivation method.

2. Common pitfalls and similar expressions

• Adoption rather than distribution alone
  • The word includes people taking up and continuing to use what has spread.