Obelisk [ OB-uh-lisk ]
A tall, four-sided stone pillar that tapers upward to a pyramid-shaped top.
Explanation
Technical Meaning: A vertically proportioned, usually square-sectioned monument with tapering sides and a pyramidal top, often used as an architectural or commemorative feature.
Simple Meaning: A tall, narrow, four-sided monument that becomes narrower toward the top.
Definition in One Word: Pillar
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