Where does this definition of on the air come from?
This entry for on the air is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is on the air a noun, verb, or something else?
In this entry, on the air is tagged as 2adv..
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.