- a fundamental principle or practice;
"science eroded the pillars of superstition"
- anything that approximates the shape of a column or tower;
"the test tube held a column of white powder" "a tower of dust rose above the horizon" "a thin pillar of smoke betrayed their campsite"
- a prominent supporter;
"he is a pillar of the community"
- 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