Two-way means moving or working in two opposite directions or allowing something to move or work in two opposite directions. The bridge is now open to two-way traffic
operating or permitting operation in either of two opposite directions; "a two-way valve"; "two-way traffic"; "two-way streets
A music's high frequencies are reproduced accurately by two-way, or coaxial, designs These speakers use a separate tweeter to deliver high frequency reproduction that surpasses that of dual-cone "extended range" models with whizzer cones This tweeter, usually a cone or a dome, is either on a post or bridge over the woofer