h

/eɪtʃ/
/eɪtʃ/
IPA guide

Definitions of h
  1. noun
    the 8th letter of the Roman alphabet
    synonyms: H
    see moresee less
    type of:
    alphabetic character, letter, letter of the alphabet
    the conventional characters of the alphabet used to represent speech
  2. noun
    the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
    synonyms: Planck's constant
    see moresee less
    type of:
    constant of proportionality, factor of proportionality
    the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality
Pronunciation
US
/eɪtʃ/
UK
/eɪtʃ/
Cite this entry
Style:
MLA
  • MLA
  • APA
  • Chicago

Copy citation
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘h'. Views expressed in the examples do not represent the opinion of Vocabulary.com or its editors. Send us feedback
Word Family