Main definitions of h in English

abbreviation

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

  ‘pinto pony gelding—quiet, 13.3 h, great with kids’

• 2in 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’

• 1Planck's constant.

• 2Planck's constant divided by 2π.

nounHs, H's

• 1The eighth letter of the alphabet.

  1. 1.1Denoting 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.

abbreviation

• 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.