14 is the natural number following 13 and preceding 15.

1110, XIV, 2 * 7, 十四.

It is the 3rd biprime number,
Sum of the first 3 Squares,
The atomic number of Silicon,
The Mole Ratio of Nitrogen,
The maximum number of electrons that can fit in an f-sublevel,
A magnitude 9.5 globular cluster in the constellation Ophiuchus,
Age for a minor to be charged for Sexual offense in the UK,
Minimum age at which one can work in many U.S states,
Minimum age at which one can view, rent, purchase, or buy tickets to an 18A rated movie which an accompanying adult in the Canadian provinces of the Maritimes and Manitoba, (This does not make sense to me either.)
Thierry Henry's Number,
A Neo-Nazi Symbol,
The number of days in a fortnight,
In traditional British units of weight, the number of pounds in a stone,
The number of legs on a woodlouse,
The number of points in a proposed republican constitution of the United Kingdom,
A common designation for the thirteenth floor in many buildings for superstitious reasons,
The number of points outlined by president Woodrow Wilson for reconstructing a new Europe following World War I,
The number of lines in a sonnet.

But most importantly.

14 is the number of days left to the beginning of A Levels.

Now stop reading and start mugging.