C4

Etymology
Specified in.

Noun

 * 1)  A plastic explosive; see C-4 (explosive).
 * 2)  A class of canoeing.
 * 3)  Cervical vertebra 4.
 * 4)  C4 carbon cycle.
 * 1)  C4 carbon cycle.

Etymology
Short for, or. From the Belgian administrative form "C4".

Noun

 * 1)  a document provided by the ex-employer proving dismissal so that the unemployed person can apply for unemployment benefits
 * 2)    (especially in semi-set phrases such as "C4 krijgen" and "C4 geven")

Etymology 2

 * From, because was the four more important football competition in Europe, at the time of its creation.
 * Because the UEFA Champions League is called "C1" and the UEFA Europa League is called "C3" (it retains the name of "C3" despite the disappearance of the UEFA Cup Winners' Cup which was called "C2") and the UEFA Europa Conference League is the third competition most important in Europe.

Proper noun

 * 1) the defunct  (1961-2008)
 * 2) the  (2021-)