Main definitions of c in English

: c1C2C3

c1

  • 1Cent(s)

  • 2in combination (in units of measurement) centi-

    ‘centistokes (cS)’
  • 3"c."Century or centuries.

    ‘a watch case, 19th c’
  • 4also "c."(preceding a date or amount) circa; approximately.

    ‘Isabella was born c. 1759’
  • 5(of water) cold.

    ‘all cabins have h & c’
  • 6Colt.

Physics
  • The speed of light in a vacuum.

    ‘E = mc²’

Pronunciation

c

/sē//si/

Main definitions of c in English

: c1C2C3

C2

  • 1Cape (chiefly on maps)

    ‘C. Hatteras’
  • 2Celsius or centigrade.

    ‘it was 29°C at noon’
  • 3Copyright.

  • 4Physics
    Coulomb(s)

  • 1Physics
    Capacitance.

  • 2The chemical element carbon.

Phrases

  • the Big C

    • informal Cancer.

      • ‘If the Big C is inside any one of these boobs, it would be entirely my fault wouldn't it?’
      • ‘However, my best friend has the big C, yes, cancer.’
      • ‘I'm very conscious that the Big C runs in my family, so have been interested in hearing from people who didn't take conventional cancer treatments, but instead, changed their lifestyle and nutrition.’
      • ‘I suppose the warning signs were out when Steve was diagnosed with the Big C, but he's beat a number of other physical close calls with the Grim Reaper.’
      • ‘I should learn to shut up when someone brings up the Big C subject, instead of trying to change the world.’
      • ‘It was not called by name, but was whispered as ‘the Big C,’ something that could attack any grown-up's body without warning.’
      • ‘But as you read his first person account of his battle with the Big C, you begin to understand.’
      • ‘Was it the Big C, or just a concentrated bit of fat?’
      • ‘Is it any wonder that what has been labelled at The Big C - some cannot even say the name - has become the topic of conversation to be generally avoided?’
      • ‘So, with apologies to all, the need is to find an appropriately gruesome substitute for the Big C, one that gives offence to none.’

Pronunciation

C

/sē//si/

Main definitions of c in English

: c1C2C3

C3

(also c)

noun

  • 1The third letter of the alphabet.

    1. 1.1 Denoting the third in a set of items, categories, sizes, etc.
    2. 1.2 Denoting the third of three or more hypothetical people or things.
    3. 1.3 The third highest class of academic grades.
    4. 1.4Chess Denoting the third file from the left of a chessboard, as viewed from White's side of the board.
    5. 1.5 The third fixed constant to appear in an algebraic expression, or a known constant.
    6. 1.6 Denoting the lowest soil horizon, comprising parent materials.
  • 2A shape like that of a letter C.

    in combination ‘C-springs’
  • 3Music
    The first note of the diatonic scale of C major, the major scale having no sharps or flats.

    1. 3.1 A key based on a scale with C as its keynote.
  • 4The Roman numeral for 100.

  • 5A high-level computer programming language originally developed for implementing the UNIX operating system.

Pronunciation

C

/si//sē/