Synonyms of pillar

1. pillar, principle, rule: usage: a fundamental principle or practice; "science eroded the pillars of superstition"
2. column, tower, pillar, shape, form: usage: 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"
3. pillar, mainstay, supporter, protagonist, champion, admirer, booster, friend: usage: a prominent supporter; "he is a pillar of the community"
4. column, pillar, structure, construction: usage: a vertical cylindrical structure standing alone and not supporting anything (such as a monument)
5. column, pillar, upright, vertical: usage: (architecture) a tall vertical cylindrical structure standing upright and used to support a structure