Octagon n. : A plane figure of eight sides and eight angles.

Octagon n. : Any structure (as a fortification) or place with eight sides or angles.

Example:
how to calculate measurements for an Octagon?

Taxonomy
Octagon Marketing, Athletes, Personalities, entertainment marketing, Marketing, thought leader, passion, sports & entertainment, degree approach, emotive power, sports and entertainment, entertainment content, brand awareness, loyalty, quarter century, maximizing, earning potential, highest level.

Defination from the web:
Offers advertising and marketing services including athlete representation, consultancy, event management, TV rights, licensing, and merchandising.