C
Longman Dictionary of Contemporary English 5++LDOCE 5++C1, c /siː/ noun (plural C’s, c’s) [countable, uncountable] 1. SLAthe third letter of the English alphabet 英语字母表的第三个字母2. APMthe first note in the musical scale of C major, or the musical key based on this note C音〔C大调音阶的第一音〕；C 调3. RESULT/GRADEa mark given to a student’s work to show that it is of average quality C级，丙级，丙等〔表示学业成绩中等〕4. HMthe number 100 in the system of roman numerals 〔罗马数字〕100
Examples from the Corpus
C• Terry got a C in algebra.C2 1 the written abbreviation of Celsius or Centigrade / Centigrade 或 Celsius 的书面缩写 ，摄氏温度 Water boils at 100°C. 水在100摄氏度沸腾。2 written informal a way of writing ‘see’, used especially in emails and text messages see的一种写法〔尤用于电子邮件和短信〕 CU (=see you) in class! 上课见！c (also c.) 1 (also C) the written abbreviation of century / century 的书面缩写，世纪 the economic changes of the C20th 20世纪的经济变化2 APPROXIMATELYa written abbreviation of circa (=about), used especially before dates / circa 的书面缩写，大约，左右〔尤用于日期前〕 c. 1830 约1830年3. © the written abbreviation of copyright / copyright 的书面缩写，版权4. American English the written abbreviation of cup, used in cooking / cup 的书面缩写，杯〔用于烹调计量〕n©the written abbreviation of copyright / copyright 的书面缩写，版权 → cFrom Longman Business Dictionarycc written abbreviation for CENTIME Corpus the alphabet the Business English third letter of
c
c (also c.)
1. (also C) the written abbreviation of century:
the economic changes of the C20th
2. a written abbreviation of circa (=about), used especially before dates:
c. 1830
3. © the written abbreviation of copyright
4. American English the written abbreviation of cup, used in cooking
c (also c.)
1. (also C) the written abbreviation of century:
2. a written abbreviation of circa (=about), used especially before dates:
3. © the written abbreviation of copyright
4. American English the written abbreviation of cup, used in cooking
C
C1 
, c /siː/ noun (plural C’s, c’s) [uncountable and countable]
1. the third letter of the English alphabet
2. the first note in the musical scale of C major, or the musical key based on this note
3. a mark given to a student’s work to show that it is of average quality
4. the number 100 in the system of roman numerals
C2
1. the written abbreviation of Celsius or Centigrade:
Water boils at 100°C.
2. written informal a way of writing ‘see’, used especially in emails and text messages:
CU (=see you) in class!
| I |
, c /siː/ noun (plural C’s, c’s) [uncountable and countable]1. the third letter of the English alphabet
2. the first note in the musical scale of C major, or the musical key based on this note
3. a mark given to a student’s work to show that it is of average quality
4. the number 100 in the system of roman numerals
| II |
1. the written abbreviation of Celsius or Centigrade:
2. written informal a way of writing ‘see’, used especially in emails and text messages: