Meaning of “determine” - Learner’s Dictionary

determine

verb [ T ] uk us /dɪˈtɜːmɪn/
FIND

to discover the facts or truth about something:

[ + question word ] The doctors are still unable to determine what is wrong.
DECIDE

to decide what will happen:

[ + question word ] Her exam results will determine which university she goes to.

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