n. 25B6; verb
he spent much of his time travelling abroad : JOURNEY, tour, take a trip, voyage, go sightseeing, globetrot, backpack; informal gallivant; archaic peregrinate.
we travelled the length and breadth of the island : JOURNEY THROUGH, cross, traverse, cover; roam, rove, range, trek.
light travels faster than sound : MOVE, be transmitted.
25B6; noun he amassed great wealth during his travels : JOURNEYS, expeditions, trips, tours, excursions, voyages, treks, safaris, explorations, wanderings, odysseys, pilgrimages, jaunts; travelling, touring, sightseeing, backpacking, globetrotting; informal gallivanting; archaic peregrinations.