EGC 

The EGC, or Ecclesia Gnostica Catholica, is the ecclesiastical arm of the OTO.

The main event done by the EGC is the Gnostic Mass.

EGC by Nuit November 16, 2006

Égč 

Used to replace a noun.
It is only used when one or more people know what is being referred to.

Can sometimes be spelt egč or egc

Liam: Where you going?
Jan: To get égč
Liam: Ok.

Égč by SableGrub says: Despacito Epic May 16, 2018

EGCG 

is a powerful antioxidant found in tea. Most concentrated in green tea versus other teas, EGCG is associated with weight loss but also helps to eliminate free radicals.

That EGCG enriched tea helped her lose 5Kg!

EGCG by byron9876 January 3, 2007