(C’s, c’s)
1.
C is the third letter of the English alphabet.
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2.
In music, C is the first note in the scale of C major.
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3.
If you get a C as a mark for a piece of work or in an exam, your work is average.
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4.
c. is written in front of a date or number to indicate that it is approximate. c. is an abbreviation for ‘circa’.
...the museum’s recreation of a New York dining-room (c. 1825-35).
5.
C or c is used as an abbreviation for words beginning with c, such as ‘copyright’ or ‘Celsius’.
Heat the oven to 180°C.
6.
see also C-in-C , c/o