Definitions

1. noun

A person who annotates, especially one who adds notes or comments to a text, image, or other material.

“The annotator of the ancient manuscript was a renowned expert in the field of paleography.”

2. noun

A device or program that adds annotations or comments to digital content, such as a web page or video.

“The annotator software helped the students to highlight important passages in the e-book.”

3. verb

To add annotations or comments to something, especially a text or image.

“She annotated the novel with her thoughts and insights, making it easier to discuss in class.”