押さえる

1. Origins, structure, and basic meaning

• Structure: 押さえる is read as おさえる and is a transitive verb meaning to hold something down or to secure a place or item in advance.
• Basic usage: Use 紙を石で押さえる for physical restraint and 宿を押さえる for reserving lodging.

2. Common pitfalls and similar expressions

• Physical holding and securing
  • The first sense prevents movement by pressure; the second extends this to reserving something before someone else takes it.
• Spelling versus 抑える
  • The homophone 抑える commonly means suppressing emotion, prices, or growth; 押さえる fits pressing down or securing a booking.