補足

1. Origins, structure, and basic meaning

• Structure: 補足(ほそく) means adding what is needed to fill a gap.
• Basic usage: It is used for supplementing an explanation with a diagram or adding information about a schedule.

2. Common pitfalls and similar expressions

• Supplementing and correcting
  • 訂正(ていせい) means correcting something wrong, while 補足 means adding missing information.
• Linking nouns
  • 補足の説明 means a supplementary explanation. The noun 補足 modifies 説明 through の.