Plural of in

• People currently in office or favor
• Advantages or connections that open opportunities
• The state of a batsman currently batting

Abbreviation of Immigration and Naturalization Service, a former U.S. agency

Initialism of inertial navigation system

Initialism of isolated neutron star

Abbreviation of Insert key on a keyboard

Abbreviation for insert in editing or computing commands

Third-person singular present of in

• Encloses; takes in; harvests (archaic)