Immigration and Naturalization Service, INS -- (an agency in the Department of Justice that enforces laws and regulations for the admission of foreign-born persons to the United States)
Overview of noun in
The noun in has 3 senses
inch, in -- (a unit of length equal to one twelfth of a foot)
indium, In, atomic number 49 -- (a rare soft silvery metallic element; occurs in small quantities in sphalerite)