Noun: hi
Nouns inflected like hi
soldier's woundwort,
Nicosian,
whopper,
greypate,
tactile sign language,
chronotrope,
Rosie Lee,
dissentient,
photoinactivator,
sulphonediimine,
coastal waterfall,
residuary devise,
bituminization,
nitrosonaphthol,
smṛiti,
geosphere,
backscreen,
mensuralist,
flocculate,
flocculant, etc. (List truncated at 20 nouns)
Etymology
American English. First recorded reference is to speech of a Kansas Indian (1862); originally to attract attention, probably a variant of Middle English hey, hy (circa 1475). Also an exclamation to call attention. See hey. See: Middle English Nouns '
hey'.