h

1
SEE SYNONYMS FOR h ON THESAURUS.COM

abbreviation

hard.

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Definition for h (2 of 7)

h2

Symbol, Physics.

Planck's constant.

Definition for h (3 of 7)

H1

or h

[ eych ]
/ eɪtʃ /

noun, plural H's or Hs, h's or hs.

the eighth letter of the English alphabet, a consonant.
any spoken sound represented by the letter H or h, as in hot or behave.
something having the shape of an H.
a written or printed representation of the letter H or h.
a device, as a printer's type, for reproducing the letter H or h.

Definition for h (4 of 7)

H2

abbreviation

hard.
Grammar. head.
Electricity. henry.
Slang. heroin.
high.

Definition for h (5 of 7)

H3

Symbol.

the eighth in order or in a series.
(sometimes lowercase) the medieval Roman numeral for 200.Compare Roman numerals.
Chemistry. hydrogen.
Biochemistry. histidine.
Physics.
  1. enthalpy.
  2. horizontal component of the earth's magnetic field.
  3. magnetic intensity.
Music. the letter used in German to indicate the tone B.

Definition for h (6 of 7)

h.

or H.

Definition for h (7 of 7)

H.

(in prescriptions) an hour.

Origin of H.

From the Latin word hōra
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Words related to h

dope, opium, drug, narcotic, festivity, geniality, effervescence, conviviality, blitheness, color, cheer, glee, brilliance, brightness, gladness, entertainment, elation, exhilaration, animation, fun

British Dictionary definitions for h (1 of 4)

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 h (2 of 4)

h

symbol for

physics Planck constant
hecto-
chess See algebraic notation

British Dictionary definitions for h (3 of 4)

H

symbol for

abbreviation for

Hungary (international car registration)

British Dictionary definitions for h (4 of 4)

h.

H.

abbreviation for

harbour
height
hour
husband
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 h (1 of 2)

h

The symbol forPlanck's constant

Medical definitions for h (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 h (1 of 2)

h

Abbreviation of height
The symbol for Planck's constant.

Scientific definitions for h (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.