IPA: /ˈhɛksəɡɒn/
KK: /hɛkˈsæɡən/
A shape that has six straight sides and six corners.
The architect designed a building in the shape of a hexagon.
Hexagon → It is formed from "hex" (from Greek "hexā" meaning six) and "gonia" (from Greek "gonia" meaning angle). The word "hexagon" refers to a shape that has six angles or sides.
Think of 'six' ('hex') angles ('gonia') coming together to form a shape — that's what a hexagon is.