thru-hike noun 1verb 1forms 3 noun1 •an end-to-end walk of a long-distance trail in one unbroken trek… but you can expect a thru-hike of the Florida Trail to take up to three months … — 2004 verb1 •to walk a long-distance trail end to end, in one unbroken trekI've always wanted to thru-hike… — 2006 formsthru-hiked · thru-hiking · thru-hikes