ZI or Zi may refer to:
ZIP Codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, was chosen to suggest that the mail travels more efficiently, and therefore more quickly (zipping along), when senders use the code in the postal address.
Zimbabwe (/zɪmˈbɑːbweɪ/), officially the Republic of Zimbabwe, is a landlocked country located in southern Africa, between the Zambezi and Limpopo Rivers.
Zionism (Hebrew: צִיּוֹנוּת Tsiyyonut IPA: [t͡sijo̞ˈnut] after Zion) is the national movement of the Jewish people that supports the re-establishment of a Jewish homeland in the territory defined as the historic Land of Israel (roughly corresponding to Palestine, Canaan or the Holy Land).
Zinc is a chemical element with the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table.
Zinedine Yazid Zidane (French pronunciation: [zinedin zidan], born 23 June 1972), nicknamed "Zizou", is a retired French footballer and current manager of Real Madrid.
The Z80 CPU is an 8-bit based microprocessor. It was introduced by Zilog in 1976 as the startup company's first product.
Zinc oxide is an inorganic compound with the formula ZnO. ZnO is a white powder that is insoluble in water, and it is widely used as an additive in numerous materials and products including rubbers, plastics, ceramics, glass, cement, lubricants, paints, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, and first-aid tapes.
ZigBee is an IEEE 802.15.4-based specification for a suite of high-level communication protocols used to create personal area networks with small, low-power digital radios, such as for home automation, medical device data collection, and other low-power low-bandwidth needs, designed for small scale projects which need wireless connection.
Zika virus (ZIKV) is a member of the virus family Flaviviridae. It is spread by daytime-active Aedes mosquitoes, such as A.