certificate of indebtedness certificate of incorporation • certification · · · Info · Definitions · Synonyms · Characters · · certificate of indebtedness · · Text Common · · Latin · · Scripts 27 · · Length 9 · · Syllables Definitions · · · (noun) a written promise to repay a debt. Synonyms: debt instrument, obligation, certificate of indebtedness. · · Noun Definition 1 Synonyms · · · debt instrument · · Synonym 1 obligation · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074