reach
n. C / Un. the distance you can stretch your arm to touch something. It also means the distance or area that a person, organization, or signal can influence.
n. the extent or range of something's application, influence, or physical capacity to touch. Often used to describe the geographical area covered by a service or the physical length of a person's arm.
The top shelf is just out of my reach.
The charity expanded its reach to provide clean water to three more villages this year.
While the local newspaper has a loyal following, it lacks the global reach required to attract major international advertisers.
From Middle English rechen, from Old English rǣċan (“to reach”), from Proto-West Germanic raikijan, from Proto-Germanic raikijaną, from the Proto-Indo-European *Hreyǵ- (“to bind, reach”).
From Japanese 立直 (rīchi), from Chinese 立直 (lìzhí).
Often used in the singular with 'within' or 'out of'. When referring to physical distance, it is usually countable; when referring to abstract influence, it is often uncountable.