prime interest rate primegilt • primely · · · Info · Definitions · Characters · · prime interest rate · · Text Common · · Latin · · Scripts 19 · · Length 5 · · Syllables Definitions · · · (noun) the interest rate on short-term loans that banks charge their commercial customers with high credit ratings. Synonyms: prime interest rate. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074