Meaning of “advance” - Learner’s Dictionary

advance

noun uk us /ədˈvɑːns/
in advance

B1 before a particular time:

You need to book your ticket at least 14 days in advance.
PROGRESS [ C, U ]
MONEY [ C ]

a payment given to someone before work has been completed, or before the usual time

FORWARD [ C ]

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