lead line leadless • lead-lined · · · Info · Definitions · Synonyms · Characters · · lead line · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) (nautical) plumb line for determining depth. Synonyms: lead line, sounding line. · · Noun Definition 1 Synonyms · · · sounding line · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E