A person who reaches for something, or a tool with a long handle used to grab things that are out of arm's reach.
From 'reach' (Old English 'ræcan') plus agent suffix '-er' (one who does). The tool meaning became common in the 20th century for accessibility.
Reachers became suddenly important to accessibility—a simple stick with a grabber on the end completely changed independence for elderly and disabled people, proving sometimes the simplest inventions matter most.
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