How to spell infinity

1a : the quality of being infinite. b : unlimited extent of time, space, or quantity : boundlessness. 2 : an indefinitely great number or amount an infinity of stars.

Infinity is forever. You’ve probably come across infinity in mathematics — a number, like pi, for instance, that goes on and on, symbolized as ∞. Astronomers talk about the infinity of the universe, and religions describe God as infinity.

As nouns the difference between infinity and affinity

is that infinity is (label) endlessness, unlimitedness, absence of end or limit while affinity is a natural attraction or feeling of kinship to a person or thing.