User blog comment:XYZeed/What does the omega symbol mean in size?/@comment-36856644-20190810092428/@comment-36856644-20190812181513

well, I'm not an expert on this, but:

ordinals are numbers such as: first, second, third...

the cardinals are the ones that have actual size: one, two, three...

the definition of omega is: the last natural number, therefore, its an ordinal

i can definitely see the argument here, but i cant tell you 100% accurately