No, it does not.
If you're cooking, c. means cup. If you're thinking of science as mc2, then it stands for a constant, like the speed of light.
from a purely mathematical stand point, if something were to reach the speed of light the time dialation/length contraction formula would yield something over 0. This is beacuse the formula is: constant/[(1-(velocity/speed of light)^2] as you can see, if velocity=speed of light, you get something over zero.
At the speed of light, time appears to stand still from the perspective of an observer. This is a concept known as time dilation in the theory of relativity.
mass * (Speed of light)^2
C is the speed of light.
speed of light
c = the speed of light.
Energy equals mass multiplied by the speed of light squared
Energy equals mass times the SPEED of light squared
The speed of light in vacuum.
c = the speed of light.
C = speed of light