C4

Specified in ISO 269.

C4

1. (international standards) ISO 269 standard paper size of 229 mm × 324 mm (9.02 in × 12.76 in), with a surface area of 742 cm² (115 sq in).

1=?

C4

1. (military) A plastic explosive; see C-4 (explosive).
   • 2011, “Crew Love”, in Take Care (in English), performed by Drake ft. The Weeknd:

     It's 'cause we blowing like a C4 / Got my whole crew blowin' like a C4

2. (sports) A class of canoeing.
3. (medicine) Cervical vertebra 4.
4. (biology) C4 carbon cycle.

C4

1. (British) Abbreviation of Channel 4 (“the British television channel”).

Short for C4-formulier, C4-document or C4-werkloosheidsbewijs. From the Belgian administrative form "C4".

C4 n (uncountable)

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

   Synonym: ontslag

C4 f (plural C4)

1. Citroën C4

   Hypernym: Citroën

• (UEFA Intertoto Cup): From Coupe 4 (“Cup 4”), because was the four more important football competition in Europe, at the time of its creation.
• (UEFA Europa Conference League): 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.[1][2]

C4 f

1. the defunct UEFA Intertoto Cup (1961-2008)
2. the UEFA Europa Conference League (2021-)

• Ligue Europa