Hei is the Norwegian word for "Hi" or "Hello". It is less formal than for example "God Dag" Which means Good Day. It may also refer to:

Companies and organizations

HEI Hospitality HEI Hotels & Resorts is a hospitality owner and operator based in Norwalk, Connecticut. Founded by brothers Gary and Steve Mendell, HEI owns and manages over 90 full service, upper-upscale and luxury hotels and resorts throughout the United Sta ...

, an American hotel owner and operator * Hawaiian Electric Industries, the largest supplier of electricity in the state of Hawaii *

Health Effects Institute The Health Effects Institute (HEI) is an independent, non-profit corporation specializing in research on the health effects of air pollution. It is headquartered in Boston, Massachusetts, United States. HEI was founded in 1980 with Archibald Cox ...

, a non-profit focused on the health effects of air pollution * HEICO, HEI is the stock symbol for HEICO Corporation

In education

* Higher education institution * Graduate Institute of International and Development Studies (French: '), in Geneva, Switzerland * Hautes études d'ingénieur, an engineering school in Lille, France

In language

He (letter) He is the fifth letter of the Semitic abjads, including Phoenician Hē , Hebrew Hē , Aramaic Hē , Syriac Hē , and Arabic . Its sound value is the voiceless glottal fricative (). The proto-Canaanite letter gave rise to the Greek Epsilon Ε ...

, the fifth letter of many Semitic alphabets * Heiltsuk-Oowekyala language, spoken in Canada

Places

* Heilongjiang, a province of China *

Hei District, Chiba was an administrative district of Japan located in southern Chiba Prefecture. During and before the Edo period, the district was called . History Hei District was one of the four modern districts created in former Awa Province on April 1, ...

, a former administrative unit of Japan *

Hei Glacier Hei Glacier () is a glacier flowing northwest between the Hamrane Heights and the Robin Heights in the Sverdrup Mountains of Queen Maud Land, Antarctica. It was photographed from the air by the Third German Antarctic Expedition (1938–39). It ...

, in Antarctica *

Hei River Ejin River (), also Etsin Gol, Ruo Shui () or Ruo He in ancient times, is a major river system of northern China. It flows approximately from its headwaters on the northern Gansu side of the Qilian Mountains north-northeast into the endorheic ...

, in China *

Heide–Büsum Airport Heide–Büsum Airport (german: Flugplatz Heide-Büsum) is an airport serving Heide, a town in the Dithmarschen district in the German state of Schleswig-Holstein. The airport is located northeast of Büsum, a town located about southw ...

, in Schleswig-Holstein, Germany * Heighington railway station, in England

In science and technology

* Healthy Eating Index, a measure of diet quality * High-efficiency incandescent, a type of incandescent light bulb *

High energy ignition High energy ignition, also known as H.E.I., is an electronic ignition system designed by the Delco-Remy Division of General Motors. It was used on all GM vehicles, at least in the North American market, from 1975 through the mid-1980s. There were ...

, an automotive ignition system * High explosive incendiary, a type of ammunition *

Hot-carrier injection Hot carrier injection (HCI) is a phenomenon in solid-state electronic devices where an electron or a “ hole” gains sufficient kinetic energy to overcome a potential barrier necessary to break an interface state. The term "hot" refers to ...

, a principle in the function of solid-state electronic devices * Human-environment interaction, or Environmental sociology

Other uses