pillars

1. a fundamental principle or practiceExamples: "science eroded the pillars of superstition"Synonyms: pillar

2. anything that approximates the shape of a column or towerExamples: "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"Synonyms: column, pillar, tower

3. a prominent supporterExamples: "he is a pillar of the community"Synonyms: mainstay, pillar

4. a vertical cylindrical structure standing alone and not supporting anything (such as a monument)Synonyms: column, pillar

5. (architecture) a tall vertical cylindrical structure standing upright and used to support a structureSynonyms: column, pillar