A taxonomy is a structure made of leaves and nodes meant to organize and sort raw data into actionable data. The structure is meant to follow a tree structure however it can be flat.
Each leaf and or node represent a group of user interest.
Taxonomies are managed on the following page: Onboarding > Taxonomy
The module is built around three parts:
taxonomy actions: button with all possible options overall on the module and the selected taxonomy (download / import taxonomy, create a new taxonomy as well as share a taxonomy)
taxonomies: list of all existing taxonomies with a search tool and some quick action buttons
hierarchy: graphical overview of the hierarchy of the taxonomy selected as well as details on the selected custom segment
More details on taxonomy and hierarchy management on dedicated pages: