H, h

[ eych ]

/ eɪtʃ /

SEE MORE SYNONYMS FOR H, h ON THESAURUS.COM

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 (2 of 12)

h

hard.

Definition for h (3 of 12)

h

Symbol, Physics.

Planck's constant.

Definition for h (4 of 12)

H

hard.

Grammar. head.

Electricity. henry.

Slang. heroin.

high.

Definition for h (5 of 12)

H

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.

enthalpy.
horizontal component of the earth's magnetic field.
magnetic intensity.

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

Definition for h (6 of 12)

H

or 1H, Ha

Symbol, Chemistry.

protium.

Definition for h (7 of 12)

H

or 2H, Hb

Symbol, Chemistry.

deuterium.

Definition for h (8 of 12)

H

or 3H, Hc

Symbol, Chemistry.

tritium.

Definition for h (9 of 12)

hr.

or h

hour; hours.

Definition for h (10 of 12)

h.

or H.

heavy sea.

Baseball. hit; hits.

horns.

Also hr. hour; hours.

hundred.

husband.

Definition for h (11 of 12)

H.

(in prescriptions) an hour.

Origin of H.

From the Latin word hōra

Definition for h (12 of 12)

eta

[ ey-tuh, ee-tuh ]

/ ˈeɪ tə, ˈi tə /

noun

the seventh letter of the Greek alphabet (H, η).

the vowel sound represented by this letter.

Origin of eta

< Greek êta; compare Hebrew ḥeth heth

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for h

Several visitors who were there at the same time posted photos on instagram, as observed by our old pals at H Wales Watch.
Harry Visits Colosseum - And Pays For His Own Ticket!|Tom Sykes|May 20, 2014|DAILY BEAST
Around the time of M*A*S*H, I was always looking for the next job.
Robert Duvall on His Storied Career, His New Movie, and Why He’s Ditching the GOP|Marlow Stern|March 13, 2014|DAILY BEAST
If you undergo chemotherapy, you will soon come to terms with the fact that you are bald (see “H Is for Hair”).
A Breast Cancer Alphabet: F Is For Fashion Accessories|Madhulika Sikka|February 23, 2014|DAILY BEAST
The M*A*S*H finale in 1983 is still tops, percentage-wise; it got nearly half the country, 106 million out of 234 million.
‘You’ve Got to Be Kidding’: Why Adults Dismissed The Beatles in 1964|Michael Tomasky|January 30, 2014|DAILY BEAST

In another shot she is shown kissing him on the cheek, while h has his arm wrapped around her and is grinning.
New Set Of Harry Party Photos Hit Tumblr|Tom Sykes|January 23, 2014|DAILY BEAST
Let me know who is manipulating a stock, and to h—l with dividends and earnings.
The Tipster|Edwin Lefevre
At this our men hollowered out, "What are you doing there, you Rebel sons of b——h's?"
History of the Twelfth West Virginia Volunteer Infantry|William Hewitt
"H'm—as poor, and yet thankful for small mercies," commented the Master with gentle sarcasm.
Brother Copas|Sir Arthur Thomas Quiller-Couch
An air-pump and condenser, H, is seen under the steam-cylinder.
A History of the Growth of the Steam-Engine|Robert H. Thurston
Se eadiga diacon cw, "u ungesliga, as estmettas ic symle gewilnode: h beo me to wuldre, and e to wite."
The Homilies of the Anglo-Saxon Church|lfric

British Dictionary definitions for h (1 of 8)

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

something shaped like an H
(in combination)an H-beam

British Dictionary definitions for h (2 of 8)

h

symbol for

physics Planck constant

hecto-

chess See algebraic notation

British Dictionary definitions for h (3 of 8)

H

symbol for

chem hydrogen

physics

magnetic field strength
Hamiltonian

electronics henry or henries

thermodynamics enthalpy

(on Brit pencils, signifying degree of hardness of lead) hardH; 2H; 3H Compare B (def. 9)

slang heroin

abbreviation for

Hungary (international car registration)

British Dictionary definitions for h (4 of 8)

eta

/ (ˈiːtə) /

noun

the seventh letter in the Greek alphabet (Η, η), a long vowel sound, transliterated as e or ē

Word Origin for eta

Greek, of Phoenician origin; compare Hebrew heth

British Dictionary definitions for h (5 of 8)

eta

/ (ˈeɪtə) /

noun plural eta or etas

(in Japan, formerly) a member of a class of outcasts who did menial and dirty tasks

Word Origin for eta

C19: Japanese

British Dictionary definitions for h (6 of 8)

ETA

abbreviation for

estimated time of arrival

British Dictionary definitions for h (7 of 8)

ETA

/ (ˈɛtə) /

n acronym for

Euzkadi ta Askatsuna: an organization of militant Basque nationalists attempting to gain independence for the Basques, esp those ruled by Spain, until a ceasefire in 1998, by means of guerrilla warfare

Word Origin for ETA

Basque, literally: Basque Nation and Liberty

British Dictionary definitions for h (8 of 8)

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

Word Origin and History for h

H

the pronunciation "aitch" was in Old French (ache "name of the letter H"), and is from a presumed Late Latin *accha (cf. Italian effe, elle, emme), with the central sound approximating the value of the letter when it passed from Roman to Germanic, where it at first represented a strong, distinctly aspirated -kh- sound close to that in Scottish loch. In earlier Latin the letter was called ha.

In Romanic languages, the sound became silent in Late Latin and was omitted in Old French and Italian, but it was restored in Middle English spelling in words borrowed from French, and often later in pronunciation, too. Thus Modern English has words ultimately from Latin with missing -h- (e.g. able, from Latin habile); with a silent -h- (e.g. heir, hour); with a formerly silent -h- now often vocalized (e.g. humble, humor, herb); and even a few with an excrescent -h- fitted in confusion to words that never had one (e.g. hostage, hermit).

Relics of the formerly unvoiced -h- persist in pedantic insistence on an historical (object) and in obsolete mine host. The use in digraphs (e.g. -sh-, -th-) goes back to the ancient Greek alphabet, which used it in -ph-, -th-, -kh- until -H- took on the value of a long "e" and the digraphs acquired their own characters. The letter passed into Roman use before this evolution, and thus retained there more of its original Semitic value.

Medicine definitions for h (1 of 3)

h

The symbol forPlanck's constant

Medicine definitions for h (2 of 3)

H

The symbol for the elementhydrogen

Medicine definitions for h (3 of 3)

eta

[ ā′tə, ē′tə ]

n.

The seventh letter of the Greek alphabet.

Science definitions for h (1 of 3)

h

Abbreviation of height

The symbol for Planck's constant.

Science definitions for h (2 of 3)

H

The symbol for henry.

The symbol for hydrogen.

Science definitions for h (3 of 3)

hydrogen

[ hī′drə-jən ]

H

The lightest and most abundant element in the universe, normally consisting of one proton and one electron. It occurs in water in combination with oxygen, in most organic compounds, and in small amounts in the atmosphere as a gaseous mixture of its three isotopes (protium, deuterium, and tritium) in the colorless, odorless compound H2. Hydrogen atoms are relatively electropositive and form hydrogen bonds with electronegative atoms. In the Sun and other stars, the conversion of hydrogen into helium by nuclear fusion produces heat and light. Hydrogen is used to make rocket fuel, synthetic ammonia, and methanol, to hydrogenate fats and oils, and to refine petroleum. The development of physical theories of electron orbitals in hydrogen was important in the development of quantum mechanics. Atomic number 1; atomic weight 1.00794; melting point -259.14°C; boiling point -252.8°C; density at 0°C 0.08987 gram per liter; valence 1. See Periodic Table. See Note at oxygen.

H, h

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

RELATED CONTENT

RELATED WORDS

Definition for h (2 of 12)

h

Definition for h (3 of 12)

h

Symbol, Physics.

Definition for h (4 of 12)

H

Definition for h (5 of 12)

H

Symbol.

Definition for h (6 of 12)

H

or 1H, Ha

Symbol, Chemistry.

Definition for h (7 of 12)

H

or 2H, Hb

Symbol, Chemistry.

Definition for h (8 of 12)

H

or 3H, Hc

Symbol, Chemistry.

Definition for h (9 of 12)

hr.

or h

Definition for h (10 of 12)

h.

or H.

Definition for h (11 of 12)

H.

Origin of H.

Definition for h (12 of 12)

eta

noun

Origin of eta

Examples from the Web for h

British Dictionary definitions for h (1 of 8)

h

H

noun plural h's, H's or Hs

British Dictionary definitions for h (2 of 8)

h

symbol for

British Dictionary definitions for h (3 of 8)

H

symbol for

abbreviation for

British Dictionary definitions for h (4 of 8)

eta

noun

Word Origin for eta

British Dictionary definitions for h (5 of 8)

eta

noun plural eta or etas

Word Origin for eta

British Dictionary definitions for h (6 of 8)

ETA

abbreviation for

British Dictionary definitions for h (7 of 8)

ETA

n acronym for

Word Origin for ETA

British Dictionary definitions for h (8 of 8)

h.

H.

abbreviation for

Word Origin and History for h

H

Medicine definitions for h (1 of 3)

h

Medicine definitions for h (2 of 3)

H

Medicine definitions for h (3 of 3)

eta

n.

Science definitions for h (1 of 3)