h

¹

abbreviation for

1. hard.

H

²

or h

[ eych ]

noun

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

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

³

Symbol, Physics.

1. Planck's constant.

H

⁴

abbreviation for

1. hard.
2. Grammar. head.
3. Electricity. henry ( def ).
4. Slang. heroin ( def ).
5. high.

H

⁵

Symbol.

1. the eighth in order or in a series.
2. (sometimes lowercase) the medieval Roman numeral for 200. Compare Roman numerals.
3. Chemistry. hydrogen ( def ).
4. Biochemistry. histidine ( def ).
5. Physics.
   1. enthalpy ( def ).
   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

or H.

abbreviation for

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

abbreviation for

1. (in prescriptions) an hour.

h

¹

/ 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
3. 1. something shaped like an H
   2. ( in combination )

      an H-beam

h.

²

abbreviation for

1. harbour
2. height
3. hour
4. husband

H

³

symbol for

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

   2H

   H

   3H

6. slang.
   heroin

abbreviation for

1. Hungary (international car registration)

h

⁴

symbol for

1. physics Planck constant
2. hecto-
3. chess See algebraic notation

Word History and Origins

Origin of h¹

From the Latin word hōra

Related Words

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