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