Light Triple-Dash Vertical Line

It draws a light upright line in three separate strokes. Repeated down a column, it can make an edge or divider in a text diagram or table; alone, it is a piece of linework, not a word.

The box-drawing collection was made for character-cell displays: each fixed-width text cell held a small stroke, and neighboring characters could join into borders or interface panels. The family preserves graphic sets used prior to 1990.

The IBM PC’s Code Page 437 and other terminal graphic sets included related line-art characters; Unicode retained the wider family for compatibility. Videotex—interactive information services delivered through television networks—is another connection: Recommendation T.101, issued in November 1988, distinguished light from heavy lines.

Use it in fixed-width layouts

In a fixed-width table or terminal diagram, repeated cells can line up into a broken border or separator. Box-drawing strokes are designed to meet at cell centers so neighboring glyphs can join without gaps. Proportional spacing, fallback glyphs, or mixed-width text can throw the line off.