HEI
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Contextual meanings of HEI and Hei:
- Hei, abbreviation for the Heilongjiang province in the People's Republic of China
- HEI, High Explosive Incendiary ammunition
- HEI, Institut universitaire de hautes études internationales (Graduate Institute of International Studies) in Geneva, Switzerland
- HEI, High Energy Ignition
- Abbreviation of Alfons Heiderich from the Fullmetal Alchemist movie.