pillar -- (a fundamental principle or practice; "science eroded the pillars of superstition")
column, tower, pillar -- (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")
pillar, mainstay -- (a prominent supporter; "he is a pillar of the community")
column, pillar -- (a vertical cylindrical structure standing alone and not supporting anything (such as a monument))
column, pillar -- ((architecture) a tall vertical cylindrical structure standing upright and used to support a structure)
(Sound)
