The abbreviation would be I've.
it is an abbreviation for Christmas 'aka Xmas'
HQ is the correct abbreviation.
correct abbreviation for sounds
Sun. is the correct abbreviation for Sunday.
The abbreviation for Mile is "Mi"
The correct abbreviation for October is: Oct.
The correct abbreviation for court is "ct."
The correct abbreviation for liters is "L".
The correct abbreviation for ounces is "oz."
The correct abbreviation for Pronunciation is "pron."
The correct abbreviation for continued is "cont."