1. a small sharp piece of metal for attaching things together the nurse fastened the bandage with a pin. 2. a metal nail used to attach broken bones he has had a pin inserted in his hip. verb to attach something with a pin she pinned the bandages carefully to stop them slipping. the bone had fractured in several places and needed pinning.
Булавка (safety pin - английская булавка)
Нагель
Контакт, для пайки или установки в разъем, не обязательно в виде проволочки.