peace of westphalia peace of mind • peace offering · · · Info · Definitions · Characters · · peace of westphalia · · Text Common · · Latin · · Scripts 19 · · Length 6 · · Syllables Definitions · · · (noun) the peace treaty that ended the Thirty Years' War in 1648. Synonyms: Peace of Westphalia. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 w latin small letter w U+0077