c

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The third letter of the modern English alphabet.
• noun Any of the speech sounds represented by the letter c.
• noun The third in a series.
• noun Something shaped like the letter C.
• noun The third best or third highest in quality or rank.
• noun The first tone in the scale of C major or the third tone in the relative minor scale.
• noun A key or scale in which the tone of C is the tonic.
• noun A written or printed note representing this tone.
• noun A string, key, or pipe tuned to the pitch of this tone.
• abbreviation Physics candle
• abbreviation carat
• abbreviation charm quark
• abbreviation circumference
• abbreviation Mathematics constant
• abbreviation cubic

from The Century Dictionary.

• An abbreviation of chief justice.
• noun An abbreviation of the Latin (New Latin) Chirurgiæ Magister, Master in Surgery.
• noun An abbreviation of care of, common in addressing letters, etc. Often written c/o
• An abbreviation of Court and [lowercase] of centimeter.
• An abbreviation of captain-general;
• of captain of the guard; of coast-guard.
• An abbreviation of Certified Master
• of Church Missionary
• of common meter
• of corresponding member.
• noun An abbreviation of candle-power;
• noun of Chief Patriarch;
• noun of Clerk of the Peace;
• noun of Code of Procedure;
• noun of Congregatio Passionis, Congregation of the Passion.
• An abbreviation of (Gould's) Cordova Zones. See G. C. Z.
• An abbreviation of Cape Breton;
• of Chief Baron (of the Exchequer) (see baron, 2);
• of the Latin Chirurgiæ Baccalaurens, Bachelor of Surgery: a degree conferred by certain institutions at the end of the third year of a four years' course for the degree of M. D.;
• of Common Bench;
• Milit., of confined to barracks.
• An abbreviation of Canada East.
• An abbreviation of Certificated Teacher.
• noun An abbreviation of Common Pleas and of Court of Probate.
• noun An abbreviation of Court of Session;
• noun Clerk of the Signet;
• noun Custos Sigilli, Keeper of the Seal;
• noun con sordini (which see).
• An abbreviation of the French compte courante (account current);
• of cubic centimeter.
• An abbreviation of Caius College;
• of Catholic clergyman;
• of cepi corpus;