‘打标’ (dǎ biāo) literally combines 打 (dǎ), meaning ‘to strike’ or ‘to perform an action’, and 标 (biāo), meaning ‘mark’, ‘label’, or ‘tag’. Together, it means ‘to tag’ or ‘to label’—especially in digital, technical, or data-related contexts. It’s commonly used when assigning metadata, categorizing items, or annotating datasets for machine learning, content organization, or inventory management.

This term is prevalent in software development, data science, e-commerce platforms, and digital content systems. Unlike general labeling (e.g., 贴标签), 打标 emphasizes the *act of applying structured, often system-recognized tags*—frequently programmatically or via user interface tools. It implies intentionality and functional purpose: the label serves as a searchable, filterable, or classifiable attribute. While occasionally used colloquially for physical labeling, its dominant register is technical and professional.