Duke Duane • Duncan · · · Info · Definitions · Characters · · Duke · · Text Latin · · Script 4 · · Length Definitions · · · (noun) a British peer of the highest rank. Synonyms: duke. · · Noun Definition 1 (noun) a nobleman (in various countries) of high rank. Synonyms: duke. · · Noun Definition 2 Characters · · D latin capital letter d U+0044 e latin small letter e U+0065 k latin small letter k U+006B u latin small letter u U+0075