noun
supplementary explanation; additional clarification
Used when adding extra information to clarify or complete a previous statement, often in formal or instructional contexts.
この点については、後ほど補足説明を加えます。
I will add a supplementary explanation on this point later.
補足説明が必要な箇所に印をつけてください。
Please mark the parts that need additional clarification.
Compound of 補足 (supplement) and 説明 (explanation).