Question

what is obelisk in one sentence answer​

Answer 1

Answer:

a tapering stone pillar, typically having a square or rectangular cross section, set up as a monument or landmark

Answer 2

Answer:

An obelisk is a tall, four-sided, narrow tapering monument which ends in a pyramid-like shape or pyramidion at the top. Originally they were called tekhenu by their builders, the Ancient Egyptians.