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The 3-letter designator for UK's London Gatwick Airport is LGW.
HNL - Honolulu International Airport, Honolulu, Hawaii, United States
There is only a 2 letter abbreviation of Quebec - QC.
The International Air Transport Association, or IATA assigns a unique 3 letter abbreviation to all airports. The code CPH has been assigned to Copenhagen Airport in Denmark.
The US Postal Service abbreviation is DE, though Del. is acceptable for use in text.DE is the standard abbreviation for Delaware
The 3-letter code for the Adelaide Airport is ADL.
pss
PS3
Proc. is the abbreviation for process.
The three-letter abbreviation for autumn is "AUT." This abbreviation is commonly used in various contexts, such as calendars and weather reports.
Airport codes consist of 3 letters, so there is no MSYER. MSY is Louis Armstong New Orleans International
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