Pronunciation: /ˈpɪlər/
noun a tall vertical structure of stone, wood, or metal, used as a support for a building or as an ornament or monument
A1 The pillar of the building is made of stone.
A2 She leaned against the pillar while waiting for her friend.
B1 Education is often seen as a pillar of society.
B2 The company's success was built on the pillar of innovation.
C1 The legal system serves as a pillar of justice in our society.
C2 The pillar of democracy is the right to vote.