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