Definitions

1. noun

a small, usually cylindrical, metal or plastic device used for fastening papers on a bulletin board or other surface by pushing it through the material with a spring-loaded mechanism

“She used a pushpin to hold up her project on the board.”

2. verb

to fasten or hold something in place using a pushpin

“Pushpin the note to the bulletin board so everyone can see it.”

3. verb

to pin or attach something with a pushpin, typically in a careless or temporary manner

“Pushpin the flyer to the corkboard without checking if anyone else had already posted something similar.”