HI or Hi may refer to:
Hindi (Devanagari: हिन्दी, IAST: Hindī) or Modern Standard Hindi (Devanagari: मानक हिन्दी, IAST: Mānak Hindī), is a standardised and Sanskritised register of the Hindustani language.
Hinduism is an Indian religion and dharma, or way of life, widely practised in the Indian subcontinent and parts of Southeast Asia.
Hillary Diane Rodham Clinton (born Hillary Diane Rodham; October 26, 1947) is an American politician, diplomat, lawyer, writer and public speaker.
Human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV).
Hilary Erhard Duff (born September 28, 1987) is an American actress, businesswoman, singer, songwriter, and writer.
The Kurds (Kurdish: کورد, Kurd, also the Kurdish people, Kurdish: گەلی کورد, Gelê Kurd), are an Iranian ethnic group in the Middle East.
The Higgs boson is an elementary particle in the Standard Model of particle physics, produced by the quantum excitation of the Higgs field, one of the fields in particle physics theory.
The history of the United States, a country in North America, began with the arrival of Indigenous people from Siberia before 15,000 BC.