hi

1
[ hahy ]
/ haɪ /

interjection

(used as an exclamation of greeting); hello!

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Origin of hi

1
1425–75; late Middle English hy, perhaps variant of heihey

WORDS THAT MAY BE CONFUSED WITH hi

hi , hie, high

Definition for hi (2 of 4)

hi2
[ hahy ]
/ haɪ /

adjective

an informal, simplified spelling of high: hi fidelity.

Definition for hi (3 of 4)

HI

Hawaii (approved especially for use with zip code).

Definition for hi (4 of 4)

H.I.

Hawaiian Islands.
Meteorology. heat index.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for hi (1 of 3)

hi1
/ (haɪ) /

sentence substitute

an informal word for hello

Word Origin for hi

C20: originally US, from hiya

British Dictionary definitions for hi (2 of 3)

hi2
/ (haɪ) /

interjection

an expression used to attract attention

Word Origin for hi

C15 hy; compare hey

British Dictionary definitions for hi (3 of 3)

HI

abbreviation for

Hawaii (state)
Hawaiian Islands
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012