Meanings
hei1
HEI2
nounHEI (countable and uncountable, plural HEIs)
plural HEIs
- abbreviationcountableinitialismuncountableInitialism of higher education institution.
- abbreviationcountableinitialismuncountablegovernmentInitialism of high-explosive incendiary.
- abbreviationcountableinitialismuncountablebusinessInitialism of hot-carrier injection.
- abbreviationcountableinitialismuncountableInitialism of human-environment interaction.
- abbreviationcountableinitialismuncountableInitialism of high-efficiency incandescent (“a type of light bulb”).
proper noun
- abbreviationinitialismInitialism of Healthy Eating Index.
- abbreviationinitialismautomotiveInitialism of high energy ignition.
Rhymes & wordplay
Anagrams
Cite this entry
APA
hei. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/hei
MLA
“hei.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hei. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “hei,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/hei.
Source: hei on Wiktionary, CC BY-SA 4.0.