otc security otc market • otc stock · · · Info · Definitions · Synonyms · Characters · · otc security · · Text Common · · Latin · · Scripts 12 · · Length 5 · · Syllables Definitions · · · (noun) a security traded in the over-the-counter market. Synonyms: unlisted security, over the counter security, OTC security. · · Noun Definition 1 Synonyms · · · unlisted security · · Synonym 1 over the counter security · · Synonym 2 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079