Definition of "ERC"

(telephony) Initialism of easily-recognizable code.  examples

(finance) Initialism of early repayment charge.  examples

(education) Initialism of early career researcher.  examples

Initialism of Emacs Relay Chat.  examples

Initialism of European Rugby Cup.  examples

Initialism of European Rally Championship.  examples

Initialism of Esquerra Republicana de Catalunya.  examples

(historical) Initialism of Emergency Rescue Committee.