noun: (taxation) Initialism of goods and services tax. (Australia, New Zealand, Canada, India) [A tax very similar to the value added tax, levied, for example, in Australia, Canada, New Zealand, and Singapore.]
noun: (taxation) Initialism of goods and sales tax. (state of Victoria in Australia, formerly in Canada, was planned in Hong Kong) [A tax similar to goods and services tax, in certain countries and states.]
noun: (electronics) Abbreviation of Ge2Sb2Te5. (a compound composed of germanium, antimony, tellurium)
noun: (electronics) Initialism of GeSbTe. (germanium-antimony-tellurium, a class of phase change materials)