Definitions from Wiktionary (infinity)

▸ noun:  (uncountable) endlessness, unlimitedness, absence of a beginning, end or limits to size.
▸ noun:  (countable, mathematics) A number that has an infinite numerical value that cannot be counted.
▸ noun:  (countable, topology, mathematical analysis) An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.
▸ noun:  (uncountable) A number which is very large compared to some characteristic number. For example, in optics, an object which is much further away than the focal length of a lens is said to be "at infinity", as the distance of the image from the lens varies very little as the distance increases further.
▸ noun:  (countable, uncountable) The symbol ∞.
▸ Also see infinity

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