give in
US /ɡɪv ɪn/
UK /ɡɪv ɪn/

1.
to finally agree to something that you did not want to agree to
:
•
My parents finally gave in and let me go to the party.
•
He refused to give in to their demands.
2.
to collapse or break down under pressure
:
•
The old bridge finally gave in after years of neglect.
•
His resolve began to give in under the intense pressure.