Abbreviation of Hawaii.

Initialism of hyperspectral imaging.

A male given name, a short form of Hiram

A friendly, informal, casual greeting said upon someone's arrival. / An exclamation to call attention. / (dated) Expressing wonder or derision.

The word "hi" used as a greeting.

Informal spelling of high, often in hyphenated terms.

An informal greeting.

Initialism of hyperimmunoglobulin E syndrome.

Honorific alternative letter-case form of his, sometimes used when referring to God or another important figure who is understood from context.

(surname) Swiss-born cardiologist and anatomist Wilhelm His Jr., after whom the bundle of His (His bundle) is named.