Basic Guidelines For English Spellings
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To walk the entire length of a long-distance trail (especially the Appalachian Trail) in a single continuous hike.
1980s; earliest use found in Harper's Bazaar. After through-hiker, through-hike.
A single continuous hike along the entire length of a long-distance trail (especially the Appalachian Trail).
1970s; earliest use found in The New York Times. After through-hiker.