insertion point
The scale of a vertical bar graph is written on the vertical axis.
The vertical axis!
There is no vertical bar in a fraction. A fraction is written with either a horizontal bar or a slanted bar, which is technically called a "vinculum", but most people call it a "fraction bar".
vertical
insertion point
insertion point
vertical split bar
Vertical Split Bar
A ruler bar allows you to format the vertical alignment of text in a document.
Vertical Split Bar
window pane
The blinking vertical bar is called a cursor.