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thumbtack

1 ENTRIES FOUND:
thumbtack /ˈθʌmˌtæk/ noun
plural thumbtacks
thumbtack
/ˈθʌmˌtæk/
noun
plural thumbtacks
Britannica Dictionary definition of THUMBTACK
[count] US
: a short pin that has a large, flat head and that is used to attach papers, pictures, etc., to a wall or bulletin board
called also (British) drawing pin
see picture at office