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