adj. Having two beats, or a multiple of two beats, in each measure.
adj. Having two beats in each foot.
the GNU version of the Collaborative International Dictionary of English
adj. Double.
The Century Dictionary and Cyclopedia
Double.
To double.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. consisting of or involving two parts or components usually in pairs
Word Usage
"Conductors should mark the changes, and conduct them (beating the half-note, as much as possible); singers need only keep an even quarter-note pulse, whether duple or compound, and follow the natural rhythm and accentuation of the text."