zettabyte zettabit • zeuctocoelomatic · · · Info · Definitions · Synonyms · Characters · · zettabyte · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) a unit of information equal to 1000 exabytes or 10^21 bytes. Synonyms: ZB. · · Noun Definition 1 (noun) a unit of information equal to 1024 exbibytes or 2^70 bytes. Synonyms: zebibyte, ZB, ZiB. · · Noun Definition 2 Synonyms · · · zb · · Synonym 1 zebibyte · · Synonym 2 zib · · Synonym 3 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 t latin small letter t U+0074 y latin small letter y U+0079 z latin small letter z U+007A