pillar
nounUK /ˈpɪlə/
US /ˈpɪlər/
A tall, strong post that holds up a building.
The old temple had a big stone pillar at the front.
OTHER MEANINGS
2. A person or thing that is very important and gives strong support to something.
She is a pillar of the local community.
3. A tall shape or mass that rises straight up, like a pillar of smoke or rock.
A pillar of smoke rose from the chimney.
4. A decorative upright part of a structure, often found on buildings.
The gate was held up by two white pillars.