1 [U] state of being endless or boundless; infinite nature 无穷; 无极; 无限; 大自然
*the infinity of space 空间的无限.
2 [U] infinite distance or point in space 空间中无限远的距离或点
*gaze into infinity, ie vaguely into the distance 向茫茫远方望去
* Parallel lines meet at infinity. 平行线永不相交.
3 [U] (mathematics 数) number larger than any other that can be thought of (expressed by the symbol ); infinite quantity 无穷大, 无穷（符号为）
*Multiply y by infinity. 以无穷数乘y. =>App
4 [sing] indefinitely large amount 无限大的量
*an infinity of stars, of troubles, of things to do 星星、麻烦、要做的事无限多.
a space or distance without limits or an end
the infinity of space
a number that is too large to be calculated
In the equation below, as E goes to zero, n approaches infinity.
There is an infinity of possible solutions.
1. Waves are the children of the struggle between ocean and atmosphere, the ongoing signatures of infinity. 海浪是大海和空气相斗的产物，无限的一种不间断的标志。
2. Numbers go on forever to infinity. 数字可以永远地数下去，直到无穷。