See also: hei, héi, hēi, hèi, and héí

English edit

Noun edit

HEI (countable and uncountable, plural HEIs)

  1. Initialism of higher education institution.
  2. (military) Initialism of high-explosive incendiary.
  3. (electronics) Initialism of hot-carrier injection.
  4. Initialism of human-environment interaction.
  5. Initialism of high-efficiency incandescent (a type of light bulb).

Proper noun edit

HEI

  1. Initialism of Healthy Eating Index.
  2. (automotive) Initialism of high energy ignition.