a person who moves from place to place and has no permanent home 漂泊者,流浪者
Examples from the Corpus
wanderer• Such sightings prove that those ancient wanderers actually lived.• Flagellants are crazed wanderers obsessed with the doom of the world.• She was a homeless wanderer until tiny Delos alone of all places on earth consented to receive her.• Three other wanderers, not quite so dazed, allowed Billy to tag along.