du·ple \ˈd(y)üpəl\adjective Etymology: Latin duplus — more at double 1. a.: consisting of two : twofold, double b.: taken by twos or in groups of two 2. a.music: having two or a multiple of two beats per measure < duple time > b.of meter: consisting of feet of two syllables c.of rhythm: consisting of cadences that rise and fall within a span of two syllables