thumbtack

/ˈθʌmˌtæk/
noun
  1. A short pin with a flat, round head that can be pushed into a surface with your thumb, used to attach paper or other light items to a wall or board.
    • The teacher pinned the student's artwork to the bulletin board with a thumbtack.
    • She used a thumbtack to hang the poster on her bedroom wall.
    • I stepped on a thumbtack that had fallen on the carpet.
verb
  1. To attach something to a surface using a thumbtack.
    • He thumbtacked the flyer to the community board.
    • Please thumbtack this note to the corkboard so everyone can see it.
    • She thumbtacked a map of the city above her desk.
What does "thumbtack" mean? | whatsthatwordmean | whatsthatwordmean