dif·fer / ˈdifər/ • v. [intr.] be unlike or dissimilar: the second set of data differed from the first | tastes differ | [as adj.] (differing) widely differing circumstances. ∎ disagree: he differed from his contemporaries in ethical matters.PHRASES: agree to differ cease to argue about something because neither party will compromise or be persuaded.beg to differ politely disagree: that's your opinion—I beg to differ.