to make sb unable to move by holding them firmly; to make sb make a decision or say clearly what they think or what they intend to do
pin sb down
to make sb unable to move by holding them firmly
Two men pinned him down until the police arrived.
pin sb down
to find sb and make them answer a question or tell you sth you need to know
I need the up - to - date sales figures but I can never pin him down at the office.
pin sb down (to sth / doing sth)
to make sb make a decision or say clearly what they think or what they intend to do
It's difficult to pin her down to fixing a date for a meeting.
pin sth down
to explain or understand sth exactly
The cause of the disease is difficult to pin down precisely.
Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición