infrastructure,
base the stock of basic facilities and capital equipment needed for the functioning of a country or area; "the industrial base of Japan"
body of water,
water the part of the earth's surface covered with water (such as a river or lake or ocean); "they invaded our territorial waters"; "they were sitting by the water's edge"
hydrosphere the watery layer of the earth's surface; includes water vapor
offing the part of the sea that can be seen from the shore and is beyond the anchoring area; "there was a ship in the offing"
Adjective
main -
of force; of the greatest possible intensity; "by main strength"
main -
(of a clause) capable of standing syntactically alone as a complete sentence; "the main (or independent) clause in a complex sentence has at least a subject and a verb"
grammar the branch of linguistics that deals with syntax and morphology (and sometimes also deals with semantics)
main -
most important element; "the chief aim of living"; "the main doors were of solid glass"; "the principal rivers of America"; "the principal example"; "policemen were primary targets"; "the master bedroom"; "a master switch"
The Main is a river in Germany, 524 km (329 miles) long (including the White Main, 574 km), and it is one of the more significant tributaries of the Rhine. The Main flows through the German states of Bavaria, Baden-Württemberg (forming the border with Bavaria for some distance) and Hesse. Its watershed competes with the Danube for water; as a result, many of its boundaries are identical with those of the European Watershed.
OmegaWiki Dictionary
Ω
main The most important element.
main Duct for conveying water to a given place.
main A river in Germany, 524 km (329 miles) long, and one of the more significant tributaries of the Rhine.