USCIS Glossary: Common Immigration Terms Explained
A simple glossary of common USCIS and immigration terms to help you understand the language used in applications and notices.
Last Updated: April 25, 2025
A simple glossary of common USCIS and immigration terms to help you understand the language used in applications and notices.
The process of applying for a Green Card (permanent residency) while inside the United States.
A unique 7-, 8-, or 9-digit number assigned to immigrants by USCIS or immigration authorities.
A required appointment where USCIS collects your fingerprints, photo, and signature for background checks.
The current stage or progress of your immigration application (e.g., received, approved, RFE sent).
A Green Card holder who must remove conditions after two years (typically based on marriage).
Applying for a Green Card through a U.S. Embassy or Consulate outside the United States.
A card (also called a "work permit") that allows certain non-citizens to work legally in the U.S.
Common term for a Permanent Resident Card — proof of lawful permanent resident status.
A formal request (often by a family member or employer) asking USCIS to approve someone's immigration eligibility.
An immigrant authorized to live and work permanently in the United States — a Green Card holder.
The process by which a lawful permanent resident becomes a U.S. citizen.
An official USCIS notice that acknowledges receipt, appointment, approval, denial, or other actions.
A 13-character tracking number USCIS assigns to each immigration application or petition.
A USCIS notice asking for more documents or information before making a decision on your case.
A USCIS office that processes applications and petitions — such as Nebraska, Texas, or Vermont Service Center.
A free online account that lets you track your case status, receive updates, and manage filings with USCIS.
A monthly publication showing when Green Card applicants can proceed based on their priority date.