What does "deface" refer to in the context of markers?

In the context of markers, "deface" refers to altering the appearance of something in a way that diminishes its value or integrity. This could include any act that modifies the original state of a marker, such as scratching, painting over, or otherwise changing its features. Such alterations are typically unauthorized and can render the marker difficult to read or recognize, thus compromising its intended purpose.

While changing the color or adding decorations might also change appearance, they do not necessarily imply a deterioration of value or integrity, which is critical in the precise definition of "deface." Removing all markings would mean a complete obliteration of what the marker was meant to convey rather than altering its appearance. Therefore, the concept of "defacing" is best captured by the broader term of altering the appearance.