Meaning of “token” - Learner’s Dictionary

token

noun [ C ] uk us /ˈtəʊkən/
LOVE/THANKS

something that you give to someone in order to show them love, to thank them, etc:

I gave Helen some chocolates as a token of thanks for all her help.
INSTEAD OF MONEY

a round piece of metal or plastic that you put in some machines instead of money:

You need a token to get out of the car park.
PAPER UK (US gift certificate)

a piece of paper that you give someone which they can exchange for a book, CD, etc:

a book/record/gift token

(Definition of “token noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)