securities firm securities and exchange commission • securities industry · · · Info · Definitions · Synonyms · Characters · · securities firm · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) a stock broker's business; charges a fee to act as intermediary between buyer and seller. Synonyms: brokerage, brokerage firm, securities firm. · · Noun Definition 1 Synonyms · · · brokerage · · Synonym 1 brokerage firm · · Synonym 2 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 m latin small letter m U+006D 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