(v): teach or refine to be discriminative in taste or judgment
(v): practice sophistry; change the meaning of or be vague about in order to mislead or deceive
(v): have as a meaning
(v): alter and make impure, as with the intention to deceive
(v): corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones
(v): make more complex or refined
(v): make more complex, intricate, or richer
(n): a worldly-wise person
(n): a fully developed person from maturity onward