C1

 
Pronunciation: /siː/
(also c)

noun (plural Cs or C's)

  • 1the third letter of the alphabet.
  • denoting the third in a set of items, categories, sizes, etc..
  • denoting the third of three or more hypothetical people or things.
  • the third-highest class of academic mark: he scraped along with C’s and D’s in most subjects
  • denoting an intermediate socio-economic category for marketing purposes, including the majority of white-collar ( C1) and skilled blue-collar personnel ( C2).
  • (c) Chess denoting the third file from the left of a chessboard, as viewed from White’s side of the board.
  • (usually c) the third fixed constant to appear in an algebraic expression, or a known constant.
  • denoting the lowest soil horizon, comprising parent materials.
  • 2a shape like that of a letter C: [in combination]: C-springs
  • 3 (usually C) Music the first note of the diatonic scale of C major, the major scale having no sharps or flats.
  • a key based on a scale with C as its keynote.
  • 4the Roman numeral for 100.
    [abbreviation of Latin centum 'hundred']
  • 5 (C) [mass noun] a computer programming language originally developed for implementing the Unix operating system.
    [formerly known as B, abbreviation of BCPL]