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