Related Clues:
- Representer of time, often
- People plot things around it
- Vertical line, for example, rotating around the side
- Vertical part of a plane
- Math graph component
- Bar graph element
- Graph line, in math
- Certain line on a graph
- Part of graph along which x-coordinate is plotted
- One going up and down in a plane?
- Algebraic reference line
- Geometrician's vertical reference
- The abscissa is the distance from it
- Line going up, boundary always vertical