pushpin

US /ˈpʊʃ.pɪn/
UK /ˈpʊʃ.pɪn/
"pushpin" picture
1.

a short pin with a broad, flat head, used for fastening papers to a display board or wall

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She used a pushpin to attach the notice to the bulletin board.
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Be careful not to step on a loose pushpin.
:
thumbtackdrawing pin
1.

to fasten with a pushpin

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He will pushpin the poster to the wall.
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Can you pushpin these notes for me?
:
tackpin