English abbreviations from z to zap
- z (Zepto)
- Z/F (zone of fire)
- z/OS (latest operating system in the OS/360 lineage)
- za (Zhuang languages (ISO 639-1 code))
- ZAA (Alice Arm Airport)
- ZAC (York Landing Airport)
- ZAD (Zadar Airport)
- ZADIR (Zero Assumption Digital Image Recovery)
- ZAF (South Africa (ISO 3166 trigram))
- ZAG (Zagreb Airport (Pleso Airport))
- ZAH (Zahedan Airport)
- ZAHB ((celestial object) "Zero-Age" Horizontal Branch, horizontal branch stars that have just begun burning helium in their cores and hydrogen in a shell around the cores)
- ZAJ (Zaranj Airport)
- ZAKA (Zihuy Korbanot Asson)
- ZAKIYA (Zealous Action Key International Yak Association)
- ZAL (Pichoy Airport)
- ZAM (Zamboanga International Airport)
- ZAMBIES (Zombie Assassins and Multiplayer Beasts of the Indispensable Elite Squad)
- ZAMS (Zero age main sequence)
- ZAND ((celestial object) Z ANDromedae, a class of eruptive variable stars named after the binary star system Z Andromedae, the archetype for the class)
- ZANDE ((celestial object) Z ANDromedae with Eclipses, a subclass of ZAND stars where the stars eclipse each other)
- ZANU (Patriotic Front)
- ZAO (Laberandie Airport)
- ZAP (Zero Adolescent Pregnancy)