To identify something (e.g. a decision or plan) clearly or specifically.
To hold the opponent back-first so both his or her shoulders touch the mat or ground.
To corner somebody in order to get a firm answer.
To attach or secure with pins.
To identify or locate (someone or something) precisely or with great accuracy.
The point of a pin.
Something infinitesimal; a tiny point.
Extremely precise or specific, especially regarding location.