記憶力

1. Origins, structure, and basic meaning

• Structure: 記憶力 is read きおくりょく; it combines 記憶 with 力, which expresses ability.
• Basic usage: It describes the ability to recall names or remember information during a card game.

2. Common pitfalls and similar expressions

• Content and ability
  • 記憶 can refer to remembered content or memory itself, while 記憶力 emphasizes the ability to retain and recall information.
• Describing a change
  • 記憶力が落ちた means that memory has become weaker than before. The example adds 気がする to present this as the speaker's impression.