What is the meaning of "annotate"?

The term "annotate" refers specifically to the act of adding explanatory notes or comments to a text or document. When someone annotates, they may provide definitions, explanations, or additional insights that clarify the content or context of the material. This process enhances understanding by allowing readers to engage more deeply with the text and grasp its meaning more fully.

In scholarly work, for example, annotating can help provide background information, highlight important points, or analyze the implications of what is written. Therefore, the choice that identifies the act of adding explanatory notes most accurately captures the essence of what it means to annotate.