i Register
In some senses, pushpin is marked as archaic. Watch for register when choosing this word.
noun
A small pin with a head made for gripping with the fingers, to be pushed into a bulletin board so as to pin papers to it; especially, such a pin with a cylindrical head.
My invention relates to improvements in what are termed “push-pins,” said pins being adapted to support one article upon another and being particularly employed for holding photographic films stretched upon a surface, such as a board, for drying and the like.
An illustration showed a pair of scissors slicing off the leg of a doll […] stuck with pushpins.
An old children's game where pins are placed on a table and each player tries to push his pin so as to cross the other's.
verb
To fasten with a thumbtack.