WordReference Random House Unabridged Dictionary of American English © 2020
return tick′et, 
  1. a ticket for the return portion of a trip.
  2. British Terms[Chiefly Brit.]a round-trip ticket.
  • 1840–50

Collins Concise English Dictionary © HarperCollins Publishers::
return ticket n
  1. Brit a ticket entitling a passenger to travel to his destination and back again
'return ticket' also found in these entries (note: many are not synonyms or translations):
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