(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.
“The infinity of time and space gives character to all other infinity.”
“Those are the authentic prescribed vignettes, but, like Scrabble's alphabetic squares, there is an infinity of ways in which to range and rearrange them, and the message that they convey.”
“If you run, you will be haunted as a result of your timidity for the rest of infinity.”