(~s)
1.
A ~ is a particular field of thought, activity, or interest, especially one over which someone has control, influence, or rights. (FORMAL)
...the great experimenters in the ~ of art...
N-COUNT: usu with supp
2.
On the Internet, a ~ is a set of addresses that shows, for example, the category or geographical area that an Internet address belongs to. (COMPUTING)
N-COUNT