Simple Definition of thumbtack

from our Learner's Dictionary

thumbtack

noun

plural thumbtacks
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

Cite this Entry

“Thumbtack.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/thumbtack. Accessed 15 Apr. 2026.

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