the existence of two separate economic sectors within one country, divided by different levels of development, technology, and different patterns of demand.

plural of first-person dual

plural of third-person dual

Synonym of double-edged sword: a benefit that is also a liability. / Used other than figuratively or idiomatically: see dual, edged, sword.

plural of dual-edged sword

plural of second-person dual

plural of dual cab

Synonym of crew cab

Synonym of touch-tone dialing