ha

or hah

[ hah ]
/ hɑ /

interjection

(used as an exclamation of surprise, interrogation, suspicion, triumph, etc.)

Origin of ha

Middle English word dating back to 1250–1300; see origin at ha-ha1

Definition for ha (2 of 7)

ha

hectare; hectares.

Definition for ha (3 of 7)

ḥā
[ khah ]
/ xɑ /

noun

the sixth letter of the Arabic alphabet, representing a pharyngeal spirant consonant.

Origin of ḥā

From Arabic

Definition for ha (4 of 7)

[ hah ]
/ hɑ /

noun

the 26th letter of the Arabic alphabet, representing a glottal spirant consonant sound.

Origin of

From Arabic

Definition for ha (5 of 7)

Ha

Symbol, Chemistry, Physics.

Definition for ha (6 of 7)

H1

or 1H, Ha


Symbol, Chemistry.

Definition for ha (7 of 7)

h.a.

Gunnery. high angle.
in this year.

Origin of h.a.

(def 2) < Latin hōc annō
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for ha

British Dictionary definitions for ha (1 of 7)

ha1

hah

/ (hɑː) /

interjection

an exclamation expressing derision, triumph, surprise, etc, according to the intonation of the speaker
(reiterated) a representation of the sound of laughter

British Dictionary definitions for ha (2 of 7)

ha2

symbol for

hectare

British Dictionary definitions for ha (3 of 7)

Ha

abbreviation for

Hawaii

British Dictionary definitions for ha (4 of 7)

h

H

/ (eɪtʃ) /

noun plural h's, H's or Hs

the eighth letter and sixth consonant of the modern English alphabet
a speech sound represented by this letter, in English usually a voiceless glottal fricative, as in hat
  1. something shaped like an H
  2. (in combination)an H-beam

British Dictionary definitions for ha (5 of 7)

h

symbol for

physics Planck constant
hecto-

British Dictionary definitions for ha (6 of 7)

h.a.

abbreviation for

hoc anno

Word Origin for h.a.

Latin: in this year

British Dictionary definitions for ha (7 of 7)

H

symbol for

abbreviation for

Hungary (international car registration)
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

Medical definitions for ha (1 of 2)

h

The symbol forPlanck's constant

Medical definitions for ha (2 of 2)

H

The symbol for the elementhydrogen
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for ha (1 of 2)

h

Abbreviation of height
The symbol for Planck's constant.

Scientific definitions for ha (2 of 2)

H

The symbol for henry.
The symbol for hydrogen.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.