Where does this definition of thumb pin come from?
This entry for thumb pin is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is thumb pin a noun, verb, or something else?
In this entry, thumb pin 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.