determine

US /dɪˈtɝː.mɪn/
UK /dɪˈtɝː.mɪn/
"determine" picture
1.

cause (something) to occur in a particular way; be the decisive factor in

:
The success of the project will determine our future.
Your attitude can determine your outcome.
2.

ascertain or establish exactly, typically as a result of research or calculation

:
Scientists are trying to determine the cause of the disease.
We need to determine the exact number of participants.