-
governmental | military
-
Zzzzzz (falling Asleep At The Keyboard)
internet | chat
-
miscellaneous | unit measures
-
miscellaneous | science fiction
-
academic & science | electronics
-
Aircraft Symbol Prefix – Planning
governmental | transportation
-
miscellaneous | unclassified
-
miscellaneous | funnies
-
international | german
-
governmental | military
-
governmental | state & local
-
Form Z (polar Make; Make) Bar Contactor
academic & science | electronics
-
governmental | environmental
-
miscellaneous | unclassified
-
community | media
-
academic & science | physics
-
academic & science | electronics
-
regional | countries
-
business | stock exchange
-
academic & science | astronomy
-
Unix Compressed File Archivez (binary)
computing | file extensions
-
business | general
-
governmental | nasa
-
computing | software
-
international | german
-
miscellaneous | science fiction
-
Normal Acceleration (load Factor)
governmental | nasa
-
miscellaneous | names and nicknames
-
computing | file extensions
-
academic & science | geology
-
Zulu Time (coordinated Universal Time [utc] / 'greenwich Mean Time' )
regional | time zones
-
miscellaneous | science fiction
-
miscellaneous | names and nicknames
-
Zulu Time (greenwich Mean Time / Universal Time)
governmental | nasa
-
academic & science | mathematics
-
international | german
-
academic & science | electronics
-
governmental | nasa
-
business | companies & firms
-
governmental | nasa
-
medical | veterinary
-
Aircraft Symbol Prefix – Planning
governmental | nasa
-
governmental | military
-
community | sports
-
miscellaneous | unclassified
-
computing | hardware
-
miscellaneous | unclassified
-
academic & science | mathematics
-
Aircraft Symbol Prefix – Planning
governmental | military
-
business | nyse symbols
-
community | sports
-
miscellaneous | clothes
-
miscellaneous | names and nicknames