Main definitions of h in English

: h1H2H3

h1

  • 1(in measuring the height of horses) hand(s):

    ‘pinto pony gelding—quiet, 13.3 h, great with kids’
  • 2[in combination] (in units of measurement) hecto-:

    ‘wine production reached 624,000 hl last year’
  • 3British (with reference to sporting fixtures) home:

    ‘September 14 Bradford City (h)’
  • 4Horse.

  • 5(especially with reference to water) hot:

    ‘nine rooms, all with h & c’
  • 6Hour(s):

    ‘breakfast at 0700 h’

Physics
  • 1Planck's constant.

  • 2"( ℏ ) "Planck's constant divided by 2π.

Pronunciation:

h

/eɪtʃ/

Main definitions of h in English

: h1H2H3

H2

(also h)

noun

  • 1The eighth letter of the alphabet.

    1. 1.1 Denoting the next after G in a set of items, categories, etc.
    2. 1.2"h"Chess Denoting the file on the right-hand edge of the board, as viewed from White's side.
  • 2A shape like that of a capital H:

    [in combination] ‘a widened H-strap for lateral support’
  • 3Music
    (in the German system) the note B natural.

Pronunciation:

H

/eɪtʃ/

Main definitions of h in English

: h1H2H3

H3

  • 1Hard (used in describing grades of pencil lead):

    ‘a 2H pencil’
  • 2Height (in giving the dimensions of an object):

    ‘H 195 cm by W 107 cm by D 52 cm’
  • 3Physics
    Henry(s).

  • 4informal Heroin:

    ‘‘Tell me it's not heroin.’ ‘It's not H’’
  • 5Hungary (international vehicle registration).

  • 6British (on signs in the street) hydrant.

  • 1Chemistry
    Enthalpy.

  • 2The chemical element hydrogen.

  • 3Physics
    Magnetic field strength.

Pronunciation:

H

/eɪtʃ/