Canadian immigration runs on acronyms, and nobody hands you a decoder ring. If you've ever stared at a letter full of "UCI," "AOR," and "COPR" and felt lost, this glossary is for you. It's plain-language, citizenship-focused, and links out to deeper guides where there's more to know.
Accounts and signing in
- IRCC — Immigration, Refugees and Citizenship Canada. The federal department that handles immigration and citizenship.
- IRCC account — the secure online portal where you read IRCC's messages and track your file after your AOR. It is not where you fill in and submit a citizenship application: that is a separate portal you open with an email address and password. See how to sign in with GCKey or a Sign-In Partner.
- GCKey — a government-issued username and password used to sign in to government services, including your IRCC account.
- Sign-In Partner — an alternative sign-in that uses your Canadian bank's online-banking login.
- 2FA — two-factor authentication, a required second step (such as a one-time code) that protects your account.
Your application and its status
- AOR — Acknowledgement of Receipt. The letter/email confirming IRCC received your application; it carries your application number.
- UCI — Unique Client Identifier. Your 8- or 10-digit IRCC ID number. Quote it whenever you contact IRCC.
- CSE — Case-Specific Enquiry. A question about your own file, submitted through the IRCC web form.
- ECAS — the older online Client Application Status tool, now largely replaced by checking status inside your IRCC account.
- Processing time — IRCC's published estimate of how long an application type currently takes; updated regularly.
- Notice to Appear — the letter telling you when and where to attend your citizenship ceremony (the test comes as its own invitation earlier in the process).
- Application status tracker — the online tool that shows your file's progress after your AOR. See what each status actually means.
- GCMS — Global Case Management System, IRCC's internal system for managing files. Your "GCMS notes" are the officer's view of your application — and you can request your own for free.
- ATIP — Access to Information and Privacy, the process for requesting government records. Your own personal information (including GCMS notes) is free under the Privacy Act.
Status and documents (permanent residence)
- PR — Permanent Resident. The status you hold before becoming a citizen.
- PR card — the wallet card proving permanent-resident status.
- COPR — Confirmation of Permanent Residence, the document issued when you become a PR.
- PRTD — Permanent Resident Travel Document, used to return to Canada when you're abroad without a valid PR card.
Citizenship terms
- Grant of citizenship — a permanent resident becoming a citizen (which, for applicants aged 18 to 54, includes the citizenship test). This is the path in our main citizenship guide.
- Proof of citizenship — a certificate for someone already a citizen. See proof vs. grant.
- Citizenship certificate — the document that proves citizenship (issued after a successful proof or grant application).
- Citizenship by descent — being a citizen automatically because of a Canadian parent. Widened in December 2025 by Bill C-3.
- Physical presence — the requirement to have been physically in Canada for at least 1,095 days within the 5 years before you apply for a grant. If IRCC questions your days, see what a physical presence review involves.
- Discover Canada — the official study guide the citizenship test is based on.
- Citizenship hearing — if you fail all three test attempts, IRCC invites you to a hearing with an officer (it's not an automatic refusal). See what happens if you fail the test.
- Oath of Citizenship — the final step, taken at the citizenship ceremony, that makes you a citizen.
People who can help
- MP — Member of Parliament. Your elected representative, whose office can make an enquiry about a delayed file.
- RCIC — Regulated Canadian Immigration Consultant. A licensed professional authorized to give immigration advice (as are Canadian immigration lawyers).
The one that matters most for the test
Most of these terms are about paperwork and waiting. Only one milestone actually tests you: the citizenship test, drawn from Discover Canada. It's the part of the whole process you have the most control over.
Bookmark this glossary for the next time a letter throws an acronym at you — and when the invitation to your test arrives, make sure the knowledge behind it is already solid.