The phrasal verb "pin down" is commonly used in both informal and semi-formal contexts, though it may occasionally appear in formal discourse as well. It generally means to make someone give more detail or to determine something precisely. Usage patterns show it is frequently employed in negotiations, discussions, or investigative contexts, where there is a need to get specific answers or verify details. For example, "The reporter tried to pin down the politician on his stance about tax reforms." It can also mean to physically restrict or immobilize someone or something, as seen in safety contexts or sports. The versatility of "pin down" in encompassing both metaphorical and literal uses makes it a valuable component in English, emphasizing its dynamic nature in communication.
B2
UpperIntermediate
1. To force or compel someone to give a clear and definite answer or decision.
I tried to pin him down on a specific date for the meeting, but he was evasive.
Reporters pinned the politician down on his policy changes during the press conference.
2. To understand or define something clearly.
The scientists are trying to pin down the cause of the mysterious disease.
Despite their efforts, they couldn't pin down the source of the problem.
3. To hold someone or something firmly to prevent movement.
During the wrestling match, one opponent managed to pin down the other.