1. a note or comment added to a text to explain or criticize it
2. the action of adding notes or comments to a text

Examples

• The teacher’s annotations in the margin helped clarify the difficult passage.
• Students were required to write annotations for each chapter they read.
• The manuscript contained extensive annotations by the author.
• Her careful annotation of the poem revealed hidden meanings.
• The digital text allows users to add their own annotations.
• Scholarly editions often include detailed annotations explaining historical references.
• The annotation process took several hours to complete.