fasten (something) with a pin

Translations
закрепить (что-то) булавкой
He decided to fasten the note with a pin to the board.
Он решил закрепить записку булавкой на доске.
Definitions
To secure or attach an object to another using a pin, which is a small, pointed metal or plastic device designed to hold things together.
Words
pin

noun
булавка
fasten

verb
прикрепить