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" 日/英 »
(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" （節について）完全な文として、それだけで構文的に成り立つことができる。
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【上位】 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" 水（川か湖、あるいは海洋のような）で覆われている地球表面の一部。
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