[TOP]thumbtack thumb·tack / ˈθʌmtæk / noun (<ɪ>ŋæmə) = drawing pinəðOP]thumbtack <ʃOŋð color=#0000D0 style="font-weight:bold;"> thumb·tack / ˈθʌmˌtæk ; ˈθʌmtæk / noun [C] [AmE] 1. a short pin with a flat top that is used for fixing notices on walls 图钉，按钉; SYN drawing pin [BrE] [TOP]thumbtack['θʌm.tæk] noun countable US for » drawing pin [TOP]thumbtack
1.N-COUNT 可数名词 图钉 A thumbtack is a short pin with a broad flat top which is used for fastening papers or pictures to a board, wall, or other surface.