Meaning
The ∞ symbol has the meaning Infinity. It belongs to the category Mathematical Symbols. It is also known as Endlessness and Boundlessness. The ∞ symbol symbolizes the potential infinity, especially in mathematics. Infinity is ultimately the opposite of finitude. It is often used in the interval notation to denote an infinite interval.
Here is a small example: [5;+∞)
It is all numbers from 5 (included) to +infinity.
Furthermore, the infinity sign is used in differential calculus to specify a limit. For example, for x versus infinity, the equation y = x² (Superscript Two Symbol) is also y towards infinity, because for example, for x = 100000, y = 10000000000.
Here is a video about Hilbert’s Paradox of the Grand Hotel:
But now enouth with mathematics. The Infinite Symbol also stands for a vicious circle or a paradox, in tarot cards it also has the meaning »wholeness«. The infinite sign can also be used to say, for example:
 “∞ best friends”
 “The way is ∞long”
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Symbol  ∞ 

UTF8/ Unicode  U+221E 

HTML  ∞ 
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