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English definition of “pillar”

pillar

noun [C]     /ˈpɪl.ər/ US  //
a strong column made of stone , metal , or wood that supports part of a building : A row of reinforced concrete pillars supports the bridge .figurative a pillar of smoke / flame Arches, columns and beamsPhysical supports and supportingArches, columns and beams pillar of sth a very important member or part of a group , organization , system , etc.: Mrs Maple is a pillar of the local church . Equality is one of the pillars of socialism .People in charge of or controlling other peopleBosses, managers and directors
(Definition of pillar noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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