annotate

/ˈæn.ə.teɪt/

Say it: AN-uh-tayt

1. verb To add notes to a text, diagram, or other document to provide explanation, comment, or criticism.
The professor asked us to annotate the poem, identifying all the literary devices.
2. verb To add metadata or descriptive labels to data, such as images or text, for machine learning or data processing.
Thousands of hours were spent to annotate the images with tags for the self-driving car's AI.

📖 Seen in the wild

Students were instructed to annotate their readings with questions and observations to aid comprehension.
collected by @vocablast

✏️ annotate in a sentence

The legal team had to annotate thousands of documents during the discovery phase of the lawsuit.
As I read the novel, I like to annotate the margins with my thoughts and questions.
The researcher will annotate the genetic sequence to highlight areas of interest.
Her copy of 'The Waste Land' was so heavily annotated that the original text was barely visible.
For the AI to learn, human workers must first annotate the data, labeling objects in each video frame.
Could you annotate this slide with the latest sales figures before the presentation?

🔁 Synonyms & antonyms

comment on gloss footnote explain elucidate expound clarify interpret

comment on · suggests a more personal or opinion-based addition, while annotate implies more explanatory or critical notes.

gloss · often refers to providing a brief definition for a difficult word, especially in the margins of a text.

footnote · specifically refers to notes placed at the bottom of a page, not within the text itself.

explain · is broader; you can explain something verbally, while annotating is specifically about adding written notes.

Opposites: summarize, abridge, redact, obscure

🌱 Where it comes from

The word 'annotate' comes to us directly from Latin. It's built from 'ad' meaning 'to' and 'notare' meaning 'to mark or note', which itself comes from 'nota' for 'a mark'. The meaning has remained remarkably stable since it entered English in the 16th century, always referring to the act of adding marks or notes to something.

🧩 How it's used

Common patterns:

annotate a textannotate a manuscriptannotate an imageheavily annotatedcarefully annotateannotate with comments

'Annotate' is a precise verb typically used in academic, technical, and professional settings. While you could say you 'annotated' a grocery list, it would sound overly formal; 'made notes on' is more natural for casual contexts. It implies a close, critical, or explanatory reading, not just casual scribbling. Do not confuse it with 'denote,' which means to indicate or be a sign of something.

Word family: annotation, annotator, annotated

💬 Quick answers

What does it mean to annotate something?

To annotate means to add notes to a text, diagram, or other piece of information. These notes typically provide explanations, comments, or critical analysis.

What is the difference between 'annotate' and 'comment'?

'Annotate' usually implies adding systematic, explanatory, or critical notes directly onto a document. 'Comment' is broader and can refer to making a remark about something, either verbally or in writing, and is often more opinion-based.

Is 'annotate' a formal word?

Yes, 'annotate' is generally considered a formal or neutral word. It is most at home in academic, professional, and technical contexts rather than casual conversation.

What is an example of annotating?

Highlighting a sentence in a book and writing 'This foreshadows the ending' in the margin is a classic example of annotating. Another is labeling the parts of a diagram in a science textbook.

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