Definitions
Here are some definitions that I wanted to clear up about the Norse gods.
The word "Aesir" can mean gods and goddesses who belong to the tribe of gods living in Asgard.
However, more precisely, "Aesir" is plural for the gods, where an Aesir god may be referred to as "As". While the Aesir goddesses were known as "Asynior" or "Asyniur". The singular form of Asyniur is called "Asynia".
Similarly, the "Vanir" was a tribe of gods who lived in Vanaheim, while a single Vanir is called a "Van".
By Jimmy Joe