Oxygon is a term that is not widely used in everyday language. It refers to a polygon with angles measuring less than 90 degrees. However, there are several other terms that can be used as synonyms for oxygon. Some of these include acute polygon, obtuse polygon, and non-right polygon. The term acute polygon is used when all angles in the polygon measure less than 90 degrees. On the other hand, an obtuse polygon has at least one angle that measures greater than 90 degrees. Non-right polygon simply refers to any polygon that is not a rectangle or square. All these terms can be used interchangeably with oxygon, depending on the context of the discussion.