What is the term for text labels that appear on buttons, dialog names, and form fields?

The term that best describes text labels appearing on buttons, dialog names, and form fields is microcopy. Microcopy refers to small bits of text that guide users, convey information, or offer assistance across various elements of a user interface. This term encompasses any text that aims to enhance user understanding, improve usability, and provide a better overall interaction experience.

Microcopy is crucial as it helps set user expectations and allows for smoother navigation and interactions within digital interfaces. Well-crafted microcopy can improve clarity by defining actions clearly and helping users feel more confident in their choices, ultimately leading to a more intuitive user experience.

Placeholder text, for instance, serves a different purpose: it provides an example of what information to enter within a field but is not a permanent label. Tooltips offer additional information but typically only when a user hovers over or clicks on an item. Annotations usually provide supplementary information for understanding complex elements rather than serving as functional labels.