Where does this definition of thumb tack come from?
This entry for thumb tack is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is thumb tack a noun, verb, or something else?
In this entry, thumb tack is tagged as 2n..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.