The number "nine" has a few synonyms which have been used over time. Some examples include "nonagon," which is a polygon with nine sides and nine angles. "Ennead" is another synonym for "nine" and is used to describe a group of nine individuals or objects. In tarot cards, the nine of swords is known as the "despair" card, making "despair" a synonym for this number. "Novem" is the Latin version of "nine," while "ennea" is the Greek version. With so many synonyms, it's clear that "nine" is not just a number, but a symbol with various meanings.