common abbreviations/lingo used here:
AOR- acknowledgement of receipt
PR- permanent resident
SA- sponsorship approval
AIP- approval in principle
DM- decision made
OWP- open work permit
PA- principal applicant
MP- member of parliament
IME- immigration medical exam
DMP- designated medical practitioner
CSE- case specific enquiry
IRCC- immigration, refugees and citizenship canada
CIC- citizenship and immigration canada
ECAS- electronic client application status
UCI- unique client identifier
GCMS- global case management system
BC- background check // BG- background
COPR- confirmation of permanent residence
ETA- electronic travel authorization
TRV- temporary resident visa
PCC- police clearance certificate? not sure with this one. lol. but i use it anyway
you'll get the hang of it eventually. there are a lot more for sure but these ones are what i use mostly (and what i can remember rn) i didn't know a lot of these when i joined this forum too.