an ancient trade route between China and the Mediterranean (4,000 miles); followed by Marco Polo in the 13th century to reach Cathay
massive tropical tree with deep ridges on its massive trunk and bearing large pods of seeds covered with silky floss; source of the silky kapok fiber
not extreme, especially in political views
an open way (generally public) for travel or transportation
a way or means to achieve something
animal fibers produced by silkworms and other larvae that spin cocoons and by most spiders
