federal security service federal security bureau • federal soldier · · · Info · Definitions · Characters · · federal security service · · Text Common · · Latin · · Scripts 24 · · Length 9 · · Syllables Definitions · · · (noun) the internal counterintelligence agency of the Russian Federation and successor to the Soviet KGB; formerly led by Vladimir Putin. Synonyms: Federal Security Bureau, FSB, Federal Security Service. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C 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 v latin small letter v U+0076 y latin small letter y U+0079