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