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  • h
    h
    abbreviation
  • H
    H
    noun
    the eighth letter of the English alphabet, a consonant.
  • h.
    h.
    abbreviation
    harbor.
  • H.
    H.
    abbreviation
    (in prescriptions) an hour.
Synonyms

h

1 American  

abbreviation

  1. hard.


h 2 American  
Symbol, Physics.
  1. Planck's constant.


H 3 American  
[aych] / eɪtʃ /
Or h

noun

  • H's,
    plural
  • Hs,
    plural
  • h's,
    plural
  • hs
    plural
  1. the eighth letter of the English alphabet, a consonant.

  2. any spoken sound represented by the letter H or h, as in hot or behave.

  3. something having the shape of an H .

  4. a written or printed representation of the letter H or h.

  5. a device, as a printer's type, for reproducing the letter H or h.


H 4 American  

abbreviation

  1. hard.

  2. Grammar. head.

  3. Electricity. henry.

  4. Slang. heroin.

  5. high.


H 5 American  
Symbol.
  1. the eighth in order or in a series.

  2. (sometimes lowercase) the medieval Roman numeral for 200.

  3. Chemistry. hydrogen.

  4. Biochemistry. histidine.

  5. Physics.

    1. enthalpy.

    2. horizontal component of the earth's magnetic field.

    3. magnetic intensity.

  6. Music. the letter used in German to indicate the tone B.


h. 6 American  
Or H.

abbreviation

  1. harbor.

  2. hard.

  3. hardness.

  4. heavy sea.

  5. height.

  6. hence.

  7. high.

  8. Baseball. hit; hits.

  9. horns.

  10. Also hr. hour; hours.

  11. hundred.

  12. husband.


H. 7 American  

abbreviation

  1. (in prescriptions) an hour.


H 1 British  

symbol

  1. chem hydrogen

  2. physics

    1. magnetic field strength

    2. Hamiltonian

  3. electronics henry or henries

  4. thermodynamics enthalpy

  5. (on Brit pencils, signifying degree of hardness of lead) hard Compare B

    H

    2H

    3H

  6. slang heroin

"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

abbreviation

  1. 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
h 2 British  
/ eɪtʃ /

noun

  1. the eighth letter and sixth consonant of the modern English alphabet

  2. 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

"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

h. 3 British  

abbreviation

  1. harbour

  2. height

  3. hour

  4. 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

h 4 British  

symbol

  1. physics Planck constant

  2. hecto-

  3. chess See algebraic notation

"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

Other Word Forms

Noun Inflected Forms


Etymology

Origin of H.

From the Latin word hōra


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Mr Issa says h works "six-and-a-half days a week", often popping up at stores across the country.

From BBC ● Feb. 29, 2024

Bee balm is a great addition to any existing pesto recipe as it blends well wit h basil.

From Salon ● Jan. 31, 2024

The present protocol takes between 24 h and 2 months, depending on the test of interest, and can be applied by students, academics, environmental risk assessors and industries.

From Science Daily ● Oct. 10, 2023

At the beginning of a word, the letter h is never followed by a consonant.

From Textbooks ● Apr. 19, 2023

In US English, the h is silent: ERB.

From "Woe Is I" by Patricia T. O'Conner

They are often marked by a yellow sign showing a capital "H" - there are hundreds of thousands across the UK.

From BBC ● Sep. 23, 2026

DC Studios will also grace Hall H to preview its HBO series "Lanterns," starring Kyle Chandler and Aaron Pierre as small-town Nebraska detectives, which debuts August 16.

From Barron's ● Jul. 23, 2026

This fall, H Mart is offering shoppers a guide to what they might do once they get everything home.

From Salon ● Jul. 23, 2026

Zhongji Innolight plans to offer 54.5 million H shares at a maximum offer price of HK$1,010 each.

From The Wall Street Journal ● Jul. 21, 2026

I got an H, then Annie got an H. She had H-O, and then I had H-O.

From "The Million Dollar Shot" by Dan Gutman

The starts of sessions 1 and 3 were separated by 24 h. c, Summary of stability across all 882 SMT-modulated CA1 cells.

From Nature ● Mar. 28, 2017

RH Mercury Glass table lamp, 32.25" h. x 7.5" dia.;

From Architectural Digest ● Dec. 1, 2014

Hay gold-plated Phi scissors, 9" l.; $40. nest.co.uk, 011-44-1225-461-409 Paola C. Tulip carafe by Aldo Cibic, 8" w. x 5" d. x 9.5" h.;

From Architectural Digest ● Dec. 1, 2014

"Watercar" selling for $945, capable of 25 m. p. h. attracted much attention.

From Time Magazine Archive

The rostrum is intermediate in width but definitely nearer the broad condition which obtains in S. h. saturatus.

From Comments on the Taxonomy and Geographic Distribution of Some North American Rodents by E. Raymond (Eugene Raymond) Hall

William H. Draper III, a pioneering Silicon Valley venture capitalist, died on Sept. 8 at the age of 98.

From The Wall Street Journal ● Oct. 15, 2026

Mike Flanagan adapts the Stephen King book into an eight-part series, starring an impressive Summer H. Howell and cannily updated to the present day.

From The Wall Street Journal ● Oct. 7, 2026

Thursday’s decision was signed by justices Jacqueline H. Nguyen, an Obama appointee and Roopali H. Desai, a Biden appointee.

From Los Angeles Times ● Sep. 25, 2026

But that term is an all-encompassing one, representing bills, joint resolutions of Congress and even celebratory resolutions, such as H. Res.

From Salon ● Sep. 18, 2026

Ned’s new employer, Dr. H. H. Holmes, seemed a perfect example of what everyone called the “Chicago spirit.”

From "The Devil in the White City" by Erik Larson

Preparation H’s blue and yellow package and blocky white logo appear sober by comparison.

From The Wall Street Journal ● Dec. 21, 2025

An hour before his first performance at the Coachella Music and Arts Festival’s main stage, a horde of managers, bandmembers and label execs crowded the entrance of Junior H’s artist trailer.

From Los Angeles Times ● Apr. 19, 2025

“I think he really makes us go. You know, we all respect him so much. H’s a great leader, and, that’s nice to see him get rewarded with a couple of goals.”

From Seattle Times ● Feb. 17, 2024

Latvia and Canada will play for Group H’s top spot on Tuesday.

From Washington Times ● Aug. 27, 2023

She felt a twinge of embarrassment about the “handsome,” but she had run out of H’s and, frankly, she did find Simon pleasing to look at.

From "The Unseen Guest" by Maryrose Wood

Hs later comments on race led to him saying that he felt ostracised by the scientific community.

From BBC ● Nov. 7, 2025

The layout resembled two Hs — H-H — giving each apartment three exposures to natural light.

From Washington Post ● Aug. 5, 2022

Hs son, Michael, and grandson, Marco, each started 16 more 500s without a win.

From Seattle Times ● May 24, 2022

Hs 75-yard touchdown was reminiscent of his glory days with the Eagles.

From Los Angeles Times ● Sep. 28, 2021

Hs hand was trembling as he put the phone down.

From "Catch-22" by Joseph Heller

It's a strong opening line, picking up on the hard h's of the title, powering in to the poem.

From The Guardian ● Jul. 12, 2011

Under those terms, the peasant is neither able nor eager to improve the land or h's farming methods.

From Time Magazine Archive

By the time he reached h's majority, the Sanson dynasty had become a kind of headsman's peerage.

From Time Magazine Archive

The usually natty Mr. Truman seemed almost rumpled after a day that began at 5 a.m.; by late afternoon h's shirt was mussed and his four-point breast-pocket handkerchief had lost its Esquire esprit.

From Time Magazine Archive

Scanning through the h’s, I find no Henkles listed in town, or in the neighboring towns.

From "A Mango-Shaped Space" by Wendy Mass

However says she hs no plans to put down her camera just yet.

From BBC ● May 18, 2025

That show — the first ever devoted exclusively to hs work — brought together 21 paintings and revealed many new insights.

From New York Times ● Feb. 3, 2023

David Spade's mother, Judy, attends a taping of his show "Lights Out," on her birthday and suggests he goes too far in hs monologue sometimes, which prompts him to cut some jokes.

From Salon ● May 10, 2020

After his maiden victory in hs first race he has never raced below the allowance level.

From Los Angeles Times ● Jan. 10, 2020

Roughly speaking, I should say that in England he who bothers about his hs is a fool, and he who ridicules a dropped h a snob.

From Captain Brassbound's Conversion by Bernard Shaw

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