広い

1. Origins, structure, and basic meaning

• Structure: 広い is read as ひろい and is an い-adjective meaning wide, broad, or spacious.
• Basic usage: It is predicative in 教室は広い and attributive in 広い芝生.

2. Common pitfalls and similar expressions

• Room and open area
  • The classroom has ample interior space, while the lawn provides a broad area where children can run.
• Choosing an English adjective
  • spacious fits an interior, while broad or wide may fit an open expanse such as a lawn.