Don

[Sp. & Pr. don, Pg. dom, dono, It. donno, from Lat. dominus, master.] 1. Sir; Mr.; Signior;—a title in Spain, formerly given to noblemen and gentlemen only, but now common to all classes. 2. A grand personage, or one making pretension to consequence; especially, at the English universities, a university officer. “The great dons of wit.” Dryden.