Oxford Dictionary English thumbtack noun noun BrE BrE//ˈθʌmtæk// ; NAmE NAmE//ˈθʌmtæk// (also tack) (both North American English) (British English drawing pin) Add to my wordlistjump to other results enlarge image a short pin with a large round flat head, used especially for fastening paper to a board or wallSee thumbtack in the Oxford Advanced American DictionaryCheck pronunciation: thumbtack oxfordlearnersdictionaries.com
