(finance, historical) The first (1970s) attempt at European monetary cooperation, essentially pegging all of the EEC currencies to one another.

A census-designated place in Greenfield, Monroe County, Wisconsin, United States.

A tunnel linking two parallel main tunnels.

plural of cross-tunnel

(transport, civil engineering) A tunnel driven through the base of a mountain pass, rather than through the upper slopes of the mountains.

plural of base tunnel

plural of summit tunnel

plural of culmination tunnel

(transport, civil engineering) A tunnel driven through a pass at fairly high altitude to minimize the length of tunnel required, at the cost of requiring steeper and more winding routes up to each end of the tunnel.

(transport, civil engineering) A culmination tunnel.