1. the act of attaching labels or tags to items
2. the practice of writing graffiti on walls or other surfaces
Usage: informal
3. the process of adding descriptive keywords or metadata to digital content
Usage: computing

1. present participle of tag: attaching a label or marker to something
2. present participle of tag: touching someone in a game to make them ‘it’

Examples

• The store employees spent the morning tagging all the new merchandise with price labels.
• Police arrested several teenagers for tagging buildings downtown.
• She’s tagging her vacation photos with location names.
• The children were running around, tagging each other in the playground.
• Social media tagging helps organize content by topic.
• The researcher is tagging each specimen with a unique identifier.
• Photo tagging makes it easier to find specific images later.