hi

1
[ hahy ]
See synonyms for hi on Thesaurus.com
interjection
  1. (used as an exclamation of greeting) hello!

Origin of hi

1
First recorded in 1425–75; late Middle English hy, perhaps variant of hei hey

Words that may be confused with hi

Other definitions for hi (2 of 4)

hi2
[ hahy ]

adjective
  1. an informal, simplified spelling of high: hi fidelity.

Other definitions for HI (3 of 4)

HI

abbreviation
  1. Hawaii (approved especially for use with zip code).

  2. Meteorology. heat index. : Also H.I.

Other definitions for H.I. (4 of 4)

H.I.

abbreviation
  1. Meteorology. heat index. : Also HI

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How to use hi in a sentence

British Dictionary definitions for hi (1 of 3)

hi1

/ (haɪ) /


sentence substitute
  1. an informal word for hello

Origin of hi

1
C20: originally US, from hiya

British Dictionary definitions for hi (2 of 3)

hi2

/ (haɪ) /


interjection
  1. an expression used to attract attention

Origin of hi

2
C15 hy; compare hey

British Dictionary definitions for HI (3 of 3)

HI

abbreviation for
  1. Hawaii (state)

  2. 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