main clause main • main course · · · Info · Definitions · Synonyms · Characters · · main clause · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a clause in a complex sentence that can stand alone as a complete sentence. Synonyms: main clause, independent clause. · · Noun Definition 1 Synonyms · · · independent clause · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075