Quick definitions from WordNet (pillar)
▸ noun: a fundamental principle or practice ("Science eroded the pillars of superstition")
▸ noun: a prominent supporter ("He is a pillar of the community")
▸ noun: (architeture) a tall cylindrical vertical upright and used to support a structure
▸ noun: a vertical structure standing alone and not supporting anything (as a monument or a column of air)
▸ noun: anything tall and thin approximating the shape of a column or tower ("A thin pillar of smoke betrayed their campsite")
▸ name: A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #15084)
▸ Also see pillar
▸ noun: a fundamental principle or practice ("Science eroded the pillars of superstition")
▸ noun: a prominent supporter ("He is a pillar of the community")
▸ noun: (architeture) a tall cylindrical vertical upright and used to support a structure
▸ noun: a vertical structure standing alone and not supporting anything (as a monument or a column of air)
▸ noun: anything tall and thin approximating the shape of a column or tower ("A thin pillar of smoke betrayed their campsite")
▸ name: A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #15084)
▸ Also see pillar