noun
A note or comment added to a text, image, or data, often used in technical, academic, or software contexts.
このデータセットには専門家によるアノテーションが付いている。
This dataset comes with annotations by experts.
注釈 is the native Japanese term for annotation or commentary, often used in literary or legal contexts, while アノテーション is a loanword more common in technical and digital fields.
Borrowed from English 'annotation'.