Sir Siping • Sjaak · · · Info · Definitions · Characters · · Sir · · Text Latin · · Script 3 · · Length Definitions · · · (noun) term of address for a man. Synonyms: sir. · · Noun Definition 1 (noun) a title used before the name of knight or baronet. · · Noun Definition 2 Characters · · S latin capital letter s U+0053 i latin small letter i U+0069 r latin small letter r U+0072