Main definitions of H in English

: H1H2H3

H1

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

  • 2[in combination] (in units of measurement) hecto-

    ‘wine production reached 624,000 hl last year’
  • 3Horse.

  • 4(especially with reference to water) hot.

    ‘nine rooms, all with h & c’
  • 5Hour(s)

    ‘breakfast at 0700 h’

Physics
  • Planck's constant.

Pronunciation:

H

/āCH/

Main definitions of H in English

: H1H2H3

H2

(also h)

noun

  • 1The eighth letter of the alphabet.

    1. 1.1Denoting the next after G in a set of items, categories, etc.
    2. 1.2Chess
      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.

  • 3Music
    (in the German system) the note B natural.

Pronunciation:

H

/āCH/

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)

  • 3Physics
    Henry(s)

  • 4informal Heroin.

  • 1Chemistry
    Enthalpy.

  • 2The chemical element hydrogen.

  • 3Physics
    Magnetic field strength.

Pronunciation:

H

/āCH/