adult, grownup - a fully developed person from maturity onward

cosmopolitan, cosmopolite - a sophisticated person who has travelled in many countries

slicker - a person with good manners and stylish clothing

civilise, civilize, school, cultivate, educate, train - train to be discriminative in taste or judgment; "Cultivate your musical taste"; "Train your tastebuds"; "She is well schooled in poetry"

denote, refer - have as a meaning; "`multi-' denotes `many' "

adulterate, dilute, debase, stretch - corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones; "adulterate liquor"

rarify, refine, complicate, elaborate - make more complex, intricate, or richer; "refine a design or pattern"