concordat concordantly • concordatory · · · Info · Definitions · Synonyms · Characters · · concordat · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a signed written agreement between two or more parties (nations) to perform some action. Synonyms: covenant, compact. · · Noun Definition 1 Synonyms · · · covenant · · Synonym 1 compact · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074