c1
abbreviation
1 Cricket (On scorecards) caught by: ME Waugh c Lara b Walsh 19
2Cent(s): they cost 25c each
3 [in combination] (In units of measurement) centi-: centistokes (cS)
4 (c.) Century or centuries: a watch case, 19th c
5 (often c.) (Preceding a date or amount) circa; approximately: Isabella was born circa 1759
6(Of water) cold: all bedrooms have h & c
7Colt.
symbol Physics
The speed of light in a vacuum: E = mc2
C2
/siː
/(also c)
noun (plural Cs or C's)
1The third letter of the alphabet.
1.1Denoting the third in a set of items, categories, sizes, etc.
1.2Denoting the third of three or more hypothetical people or things.
1.3The third-highest class of academic mark: he scraped along with C’s and D’s in most subjects
1.4Denoting an intermediate socio-economic category for marketing purposes, including the majority of white-collar (C1) and skilled blue-collar personnel (C2).
1.5 (c) Chess Denoting the third file from the left of a chessboard, as viewed from White’s side of the board.
1.6 (usually c) The third fixed constant to appear in an algebraic expression, or a known constant.
1.7Denoting 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.
3.1A 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
C3
/siː/abbreviation
1 (C.) Cape: C. Hatteras
2Celsius or centigrade: 29°C
3(In names of sports clubs) City: Lincoln C
4 (C.) British Command Paper (second series, 1870–99).
5(In Britain) Conservative: Sir Nicholas Fairbairn (C, Perth & Kinross)
6 (©) Copyright: © Oxford University Press
7 Physics Coulomb(s).
8Cuba (international vehicle registration).
symbol
1 Physics Capacitance.
2The chemical element carbon.
Phrases
the Big C