dually UK /ˈdjuːəli/US /ˈdu.əli/adverb 1noun 1forms 1 adverb1 •In a dual manner; doubly noun1 •A pickup truck with four wheels on the rear axle.Whatever you do, don't buy a dually. A dually is a big, diesel truck with four wheels in the back that costs three figures to fill up. — 2011 formsduallies
