Definition of "trek"

trek

/tɹɛk/

noun
plural treks
1. (South Africa) A journey by ox wagon.
2. (South Africa) The Boer migration of 1835-1837.
3. A slow or difficult journey.
  Quotations
  Early the next morning I set off on the long and hazardous trek through jungles and hills into Assam, and regretfully said "good-bye" to the gallant little Burma Railways, which had functioned to the last and played a big part in evacuating many thousands of refugees and wounded soldiers in the path of the rapidly advancing Japanese.
  1943 November and December, G. T. Porter, “The Lines Behind the Lines in Burma”, in Railway Magazine, page 327
4. A long walk.
verb
third-person singular simple present treks, present participle trekking, simple past and past participle trekked
1. (intransitive) To make a slow or arduous journey.
  Quotations
  Before that they had been a good deal on the move, trekking about after the white man, who was one of those rolling stones that keep going round after a soft job.
  1892, Robert Louis Stevenson, The Beach of Falesá
2. (intransitive) To journey on foot, especially to hike through mountainous areas.
3. (South Africa) To travel by ox wagon.
4. (Nigeria) To travel by walking.