**infinity ***noun *

^{ 1 } ` endless space/time `

__ VERB + INFINITY __** extend into/to, stretch into/to ***Theoretically, a line can extend into infinity. *

__ PREP. __** at ~ ***Parallel lines meet at infinity. ***| into ~ ***In this weather the cliff face was a foggy drop into infinity. *

^{ 2 } ` number larger than any other `

__ VERB + INFINITY __** approach, tend to/towards ***As x approaches infinity y approaches zero. *

__ PREP. __** at ~ ***The usual convention is to choose the reference point at infinity. *