Where does this definition of call sign come from?
This entry for call sign is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does call sign appear elsewhere on Lughet?
Yes — call sign appears under other sources or language pairs in Lughet's collection. See the list below.
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.