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⇱ C Definition & Meaning - Merriam-Webster

Dictionary Definition
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variants often C
often attributive
1
a
: the 3rd letter of the English alphabet
b
: a graphic representation of this letter
c
: a speech counterpart of orthographic c
2
a
: one hundred see Table of Numbers
b
slang : a sum of $100
3
: the keynote of a C-major scale
4
: a graphic device for reproducing the letter c
5
: one designated c especially as the third in order or class
6
a
: a grade rating a student's work as fair or mediocre in quality
b
: one graded or rated with a C
7
: something shaped like the letter C
8
: a structured language for creating computer programs that is designed to be compact and efficient

c

2 of 5

abbreviation (1)

1
calm
2
calorie
3
canceled
4
candle
5
canine (see canine entry 1 sense 1)
6
carat
7
catcher
8
cent
9
centavo
10
centi-
11
centime
12
centimeter
13
century
14
chapter
15
charm (see charm entry 1 sense 5)
16
circa
17
circumference
18
clonus
19
closure
20
cocaine
21
coefficient
22
college
23
[Latin congius] gallon
24
contralto
25
copyright
26
cubic
27
or cΜ„ [Latin cum] with β€”used in writing prescriptions
28
cup
29
curie

c

3 of 5

symbol (1)

speed of light β€”usually italic

C

4 of 5

abbreviation (2)

1
capacitance
2
Celsius
3
centigrade
4
cervical β€”used especially with a number from 1 to 7 to indicate a vertebra or segment of the spinal cord
5
Coulomb
6
cytosine

C

5 of 5

symbol (2)

carbon
πŸ‘ Image

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Words Starting With C

Browse 33,831 words and phrases that start with the letter C, from caaing whale to czechize.

Examples of c in a Sentence

Noun The word β€œaccess” is spelled with two cs. Many English words begin with c. a song in the key of C
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Every Friday morning, the weekly Fortune 500 Power Moves column tracks Fortune 500 company C-suite shiftsβ€”see the most recent edition. β€”πŸ‘ Image
Sheryl Estrada, Fortune, 3 Apr. 2026 It was followed by the B variation, a single-seat C version and two-seat D model in 1979. β€”πŸ‘ Image
Tom Liddy, ABC News, 3 Apr. 2026 In Louisiana, hepatitis C cure prescriptions increased fivefold. β€”πŸ‘ Image
Michael Rose, STAT, 3 Apr. 2026 OpenAI is undergoing another round of C-suite changes, according to an internal memo viewed by The Verge. β€”πŸ‘ Image
Hayden Field, The Verge, 3 Apr. 2026 See All Example Sentences for c

Word History

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a

Time Traveler
The first known use of c was before the 12th century

Phrases Containing c

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Cite this Entry

β€œC.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/c. Accessed 6 Apr. 2026.

Kids Definition

c

noun
ˈsΔ“
often capitalized
1
: the third letter of the English alphabet
2
: one hundred in Roman numerals
3
: a musical note referred to by the letter C : the tone on which a C-major scale is based
4
: a grade rating a student's work as fair or mediocre

Medical Definition

c

1 of 3 abbreviation
1
calorie
2
canine
3
cathode
4
centimeter
5
clonus
6
closure
7
cobalt
8
coefficient
9
contact
10
contraction
11
coulomb
12
curie
13
cylinder
14
or cΜ„ [Latin cum] with β€”used in writing prescriptions

C

2 of 3 abbreviation
1
Celsius
2
centigrade
3
cervical β€”used especially with a number from 1 to 7 to indicate a vertebra or segment of the spinal cord
4
cocaine
5
complement
6
congius
7
cytosine

C

3 of 3 symbol
carbon

Legal Definition

c

abbreviation
copyright

More from Merriam-Webster on c

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