haecceity haec • haeckel · · · Info · Definitions · Synonyms · Characters · · haecceity · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) the essence that makes something the kind of thing it is and makes it different from any other. Synonyms: quiddity. · · Noun Definition 1 Synonyms · · · quiddity · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 t latin small letter t U+0074 y latin small letter y U+0079