The Collaborative International Dictionary of English v.0.48:
demonetisation \demonetisation\ n. same as demonetization. [WordNet 1.5]WordNet (r) 3.0 (2006):
demonetisation n 1: ending something (e.g. gold or silver) as no longer the legal tender of a country [syn: demonetization, demonetisation] [ant: monetisation, monetization]