Touchstone
Part of speech: noun
Definition: A stone used to test the quality of gold alloys. A standard of comparison or evaluation.
Example sentence: The ultimate touchstone of constitutionality is the Constitution itself and not what we have said about it.
Standard
Part of speech: noun
Definition: A level of quality or attainment.Something used as a measure for comparative evaluations.An object supported in an upright position.A musical work of established popularity.The flag or ensign carried by a cavalry unit.A rule or set of rules or requirements which are widely agreed upon or imposed by government.A bottle of wine containing 0.750 liters of fluid.One of the upright members that supports the horizontal axis of a transit or theodolite.A manual transmission vehicle.
Part of speech: adjective
Definition: Falling within an accepted range of size, amount, power, quality, etc.Growing on an erect stem of full height.Having recognized excellence or authority.Of a usable or serviceable grade or quality.Having a manual transmission.
Example sentence: Inflation destroys savings, impedes planning, and discourages investment. That means less productivity and a lower standard of living.