a fundamental principle or practice
anything that approximates the shape of a column or tower
a prominent supporter
a vertical cylindrical structure standing alone and not supporting anything (such as a monument)
(architecture) a tall vertical cylindrical structure standing upright and used to support a structure
- The roof was held up by pillars.
- Its thick red pillars are in need of paint.
- I will not use the money to my ruler to measure the value, because I know that I am not a pillar, but I was the cause of the pillars.